Product Specs

Table Of Contents
32 SPIS Serial peripheral interface slave with
EasyDMA
Page
297
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20 19 18 17
0 0 0 0 0 0 0
16
0
15
0
14
0
13
0
12
0
11
0
10
C
0
9
0
8
0
7
0
6
0
5
0
4
B
0
3
0
2
0
1
A
0
0
0
Id RW Field
Value Id
Value
Description
See EVENTS_ENDRX
Clear
1
Disable
Disabled
0
Read: Disabled
Enabled
1
Read: Enabled
C RW ACQUIRED
Write '1' to Disable interrupt for ACQUIRED event
See EVENTS_ACQUIRED
Clear
1
Disable
Disabled
0
Read: Disabled
Enabled
1
Read: Enabled
32.5.4 SEMSTAT
Address offset: 0x400
Semaphore status register
Bit number
Id
Reset 0x00000001
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
A
0
0
A
1
Id RW Field
Value Id
Value
Description
A R SEMSTAT
Semaphore status
Free
0
Semaphore is free
CPU
1
Semaphore is assigned to CPU
SPIS
2
Semaphore is assigned to SPI slave
CPUPending
3
Semaphore is assigned to SPI but a handover to the CPU is
pending
32.5.5 STATUS
Address offset: 0x440
Status from last transaction
Individual bits are cleared by writing a '1' to the bits that shall be cleared
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
B
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW OVERREAD
NotPresent
0
TX buffer over-read detected, and prevented
Read: error not present
Present
1
Read: error present
Clear
1
Write: clear error on writing '1'
B RW OVERFLOW
NotPresent
0
RX buffer overflow detected, and prevented
Read: error not present
Present
1
Read: error present
Clear
1
Write: clear error on writing '1'
32.5.6 ENABLE
Address offset: 0x500
Enable SPI slave
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
A
0
2
A
0
1
A
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW ENABLE Enable or disable SPI slave