rp2040_pac/dma/
sniff_ctrl.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
#[doc = "Register `SNIFF_CTRL` reader"]
pub type R = crate::R<SNIFF_CTRL_SPEC>;
#[doc = "Register `SNIFF_CTRL` writer"]
pub type W = crate::W<SNIFF_CTRL_SPEC>;
#[doc = "Field `EN` reader - Enable sniffer"]
pub type EN_R = crate::BitReader;
#[doc = "Field `EN` writer - Enable sniffer"]
pub type EN_W<'a, REG> = crate::BitWriter<'a, REG>;
#[doc = "Field `DMACH` reader - DMA channel for Sniffer to observe"]
pub type DMACH_R = crate::FieldReader;
#[doc = "Field `DMACH` writer - DMA channel for Sniffer to observe"]
pub type DMACH_W<'a, REG> = crate::FieldWriter<'a, REG, 4>;
#[doc = "Field `CALC` reader - "]
pub type CALC_R = crate::FieldReader<CALC_A>;
#[doc = "  

Value on reset: 0"]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[repr(u8)]
pub enum CALC_A {
    #[doc = "0: Calculate a CRC-32 (IEEE802.3 polynomial)"]
    CRC32 = 0,
    #[doc = "1: Calculate a CRC-32 (IEEE802.3 polynomial) with bit reversed data"]
    CRC32R = 1,
    #[doc = "2: Calculate a CRC-16-CCITT"]
    CRC16 = 2,
    #[doc = "3: Calculate a CRC-16-CCITT with bit reversed data"]
    CRC16R = 3,
    #[doc = "14: XOR reduction over all data. == 1 if the total 1 population count is odd."]
    EVEN = 14,
    #[doc = "15: Calculate a simple 32-bit checksum (addition with a 32 bit accumulator)"]
    SUM = 15,
}
impl From<CALC_A> for u8 {
    #[inline(always)]
    fn from(variant: CALC_A) -> Self {
        variant as _
    }
}
impl crate::FieldSpec for CALC_A {
    type Ux = u8;
}
impl CALC_R {
    #[doc = "Get enumerated values variant"]
    #[inline(always)]
    pub const fn variant(&self) -> Option<CALC_A> {
        match self.bits {
            0 => Some(CALC_A::CRC32),
            1 => Some(CALC_A::CRC32R),
            2 => Some(CALC_A::CRC16),
            3 => Some(CALC_A::CRC16R),
            14 => Some(CALC_A::EVEN),
            15 => Some(CALC_A::SUM),
            _ => None,
        }
    }
    #[doc = "Calculate a CRC-32 (IEEE802.3 polynomial)"]
    #[inline(always)]
    pub fn is_crc32(&self) -> bool {
        *self == CALC_A::CRC32
    }
    #[doc = "Calculate a CRC-32 (IEEE802.3 polynomial) with bit reversed data"]
    #[inline(always)]
    pub fn is_crc32r(&self) -> bool {
        *self == CALC_A::CRC32R
    }
    #[doc = "Calculate a CRC-16-CCITT"]
    #[inline(always)]
    pub fn is_crc16(&self) -> bool {
        *self == CALC_A::CRC16
    }
    #[doc = "Calculate a CRC-16-CCITT with bit reversed data"]
    #[inline(always)]
    pub fn is_crc16r(&self) -> bool {
        *self == CALC_A::CRC16R
    }
    #[doc = "XOR reduction over all data. == 1 if the total 1 population count is odd."]
    #[inline(always)]
    pub fn is_even(&self) -> bool {
        *self == CALC_A::EVEN
    }
    #[doc = "Calculate a simple 32-bit checksum (addition with a 32 bit accumulator)"]
    #[inline(always)]
    pub fn is_sum(&self) -> bool {
        *self == CALC_A::SUM
    }
}
#[doc = "Field `CALC` writer - "]
pub type CALC_W<'a, REG> = crate::FieldWriter<'a, REG, 4, CALC_A>;
impl<'a, REG> CALC_W<'a, REG>
where
    REG: crate::Writable + crate::RegisterSpec,
    REG::Ux: From<u8>,
{
    #[doc = "Calculate a CRC-32 (IEEE802.3 polynomial)"]
    #[inline(always)]
    pub fn crc32(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::CRC32)
    }
    #[doc = "Calculate a CRC-32 (IEEE802.3 polynomial) with bit reversed data"]
    #[inline(always)]
    pub fn crc32r(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::CRC32R)
    }
    #[doc = "Calculate a CRC-16-CCITT"]
    #[inline(always)]
    pub fn crc16(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::CRC16)
    }
    #[doc = "Calculate a CRC-16-CCITT with bit reversed data"]
    #[inline(always)]
    pub fn crc16r(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::CRC16R)
    }
    #[doc = "XOR reduction over all data. == 1 if the total 1 population count is odd."]
    #[inline(always)]
    pub fn even(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::EVEN)
    }
    #[doc = "Calculate a simple 32-bit checksum (addition with a 32 bit accumulator)"]
    #[inline(always)]
    pub fn sum(self) -> &'a mut crate::W<REG> {
        self.variant(CALC_A::SUM)
    }
}
#[doc = "Field `BSWAP` reader - Locally perform a byte reverse on the sniffed data, before feeding into checksum.  

 Note that the sniff hardware is downstream of the DMA channel byteswap performed in the read master: if channel CTRL_BSWAP and SNIFF_CTRL_BSWAP are both enabled, their effects cancel from the sniffer's point of view."]
pub type BSWAP_R = crate::BitReader;
#[doc = "Field `BSWAP` writer - Locally perform a byte reverse on the sniffed data, before feeding into checksum.  

 Note that the sniff hardware is downstream of the DMA channel byteswap performed in the read master: if channel CTRL_BSWAP and SNIFF_CTRL_BSWAP are both enabled, their effects cancel from the sniffer's point of view."]
pub type BSWAP_W<'a, REG> = crate::BitWriter<'a, REG>;
#[doc = "Field `OUT_REV` reader - If set, the result appears bit-reversed when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
pub type OUT_REV_R = crate::BitReader;
#[doc = "Field `OUT_REV` writer - If set, the result appears bit-reversed when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
pub type OUT_REV_W<'a, REG> = crate::BitWriter<'a, REG>;
#[doc = "Field `OUT_INV` reader - If set, the result appears inverted (bitwise complement) when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
pub type OUT_INV_R = crate::BitReader;
#[doc = "Field `OUT_INV` writer - If set, the result appears inverted (bitwise complement) when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
pub type OUT_INV_W<'a, REG> = crate::BitWriter<'a, REG>;
impl R {
    #[doc = "Bit 0 - Enable sniffer"]
    #[inline(always)]
    pub fn en(&self) -> EN_R {
        EN_R::new((self.bits & 1) != 0)
    }
    #[doc = "Bits 1:4 - DMA channel for Sniffer to observe"]
    #[inline(always)]
    pub fn dmach(&self) -> DMACH_R {
        DMACH_R::new(((self.bits >> 1) & 0x0f) as u8)
    }
    #[doc = "Bits 5:8"]
    #[inline(always)]
    pub fn calc(&self) -> CALC_R {
        CALC_R::new(((self.bits >> 5) & 0x0f) as u8)
    }
    #[doc = "Bit 9 - Locally perform a byte reverse on the sniffed data, before feeding into checksum.  

 Note that the sniff hardware is downstream of the DMA channel byteswap performed in the read master: if channel CTRL_BSWAP and SNIFF_CTRL_BSWAP are both enabled, their effects cancel from the sniffer's point of view."]
    #[inline(always)]
    pub fn bswap(&self) -> BSWAP_R {
        BSWAP_R::new(((self.bits >> 9) & 1) != 0)
    }
    #[doc = "Bit 10 - If set, the result appears bit-reversed when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
    #[inline(always)]
    pub fn out_rev(&self) -> OUT_REV_R {
        OUT_REV_R::new(((self.bits >> 10) & 1) != 0)
    }
    #[doc = "Bit 11 - If set, the result appears inverted (bitwise complement) when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
    #[inline(always)]
    pub fn out_inv(&self) -> OUT_INV_R {
        OUT_INV_R::new(((self.bits >> 11) & 1) != 0)
    }
}
impl W {
    #[doc = "Bit 0 - Enable sniffer"]
    #[inline(always)]
    #[must_use]
    pub fn en(&mut self) -> EN_W<SNIFF_CTRL_SPEC> {
        EN_W::new(self, 0)
    }
    #[doc = "Bits 1:4 - DMA channel for Sniffer to observe"]
    #[inline(always)]
    #[must_use]
    pub fn dmach(&mut self) -> DMACH_W<SNIFF_CTRL_SPEC> {
        DMACH_W::new(self, 1)
    }
    #[doc = "Bits 5:8"]
    #[inline(always)]
    #[must_use]
    pub fn calc(&mut self) -> CALC_W<SNIFF_CTRL_SPEC> {
        CALC_W::new(self, 5)
    }
    #[doc = "Bit 9 - Locally perform a byte reverse on the sniffed data, before feeding into checksum.  

 Note that the sniff hardware is downstream of the DMA channel byteswap performed in the read master: if channel CTRL_BSWAP and SNIFF_CTRL_BSWAP are both enabled, their effects cancel from the sniffer's point of view."]
    #[inline(always)]
    #[must_use]
    pub fn bswap(&mut self) -> BSWAP_W<SNIFF_CTRL_SPEC> {
        BSWAP_W::new(self, 9)
    }
    #[doc = "Bit 10 - If set, the result appears bit-reversed when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
    #[inline(always)]
    #[must_use]
    pub fn out_rev(&mut self) -> OUT_REV_W<SNIFF_CTRL_SPEC> {
        OUT_REV_W::new(self, 10)
    }
    #[doc = "Bit 11 - If set, the result appears inverted (bitwise complement) when read. This does not affect the way the checksum is calculated; the result is transformed on-the-fly between the result register and the bus."]
    #[inline(always)]
    #[must_use]
    pub fn out_inv(&mut self) -> OUT_INV_W<SNIFF_CTRL_SPEC> {
        OUT_INV_W::new(self, 11)
    }
    #[doc = r" Writes raw bits to the register."]
    #[doc = r""]
    #[doc = r" # Safety"]
    #[doc = r""]
    #[doc = r" Passing incorrect value can cause undefined behaviour. See reference manual"]
    #[inline(always)]
    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
        self.bits = bits;
        self
    }
}
#[doc = "Sniffer Control  

You can [`read`](crate::generic::Reg::read) this register and get [`sniff_ctrl::R`](R).  You can [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`write_with_zero`](crate::generic::Reg::write_with_zero) this register using [`sniff_ctrl::W`](W). You can also [`modify`](crate::generic::Reg::modify) this register. See [API](https://docs.rs/svd2rust/#read--modify--write-api)."]
pub struct SNIFF_CTRL_SPEC;
impl crate::RegisterSpec for SNIFF_CTRL_SPEC {
    type Ux = u32;
}
#[doc = "`read()` method returns [`sniff_ctrl::R`](R) reader structure"]
impl crate::Readable for SNIFF_CTRL_SPEC {}
#[doc = "`write(|w| ..)` method takes [`sniff_ctrl::W`](W) writer structure"]
impl crate::Writable for SNIFF_CTRL_SPEC {
    const ZERO_TO_MODIFY_FIELDS_BITMAP: u32 = 0;
    const ONE_TO_MODIFY_FIELDS_BITMAP: u32 = 0;
}
#[doc = "`reset()` method sets SNIFF_CTRL to value 0"]
impl crate::Resettable for SNIFF_CTRL_SPEC {
    const RESET_VALUE: u32 = 0;
}