Programming Model
MOTOROLA
Synchronous Serial Interface (SSI)
30-15
Figure 30-13. Receive Data Path (RXBIT0 = 1, RSHFD = 1)
30.3.7 SSI Control/Status Register
The SSI Control/Status Register sets up and monitors the SSI. The SSI status bits are updated when the SSI
is enabled, and then after the transmission or reception of the first bit of the next SSI word is complete. The
Receive Overrun Error (ROE) and Transmitter Underrun Error (TUE) bits are cleared by reading this
register, followed by a read of the SRX register (to clear ROE), or a write to the STX register (to clear
TUE).
SCSR
SSI Control/Status Register
Addr
0x00218008
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SYS
_CLK
_EN
I2S_MODE
SYN
NET
RE
TE
SSI_
EN
RDR
TDE
ROE
TUE
TFS
RFS
RFF
TFE
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0x0041
Table 30-7. SSI Control/Status Register Description
Name
Description
Settings
Reserved
Bits 31–16
Reserved—These bits are reserved and should read 0.
The first bit shifted in depends on word length.
Arrowheads indicate the bit shifted in first in each case; all lower bits are then shifted in.
Bit 0 is always shifted in last.
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
16-Bit Word
12-Bit Word
10-Bit Word
8-Bit Word
SRX
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
RXSR
SSI_RXDAT
Содержание DragonBall MC9328MX1
Страница 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Страница 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Страница 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Страница 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Страница 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Страница 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Страница 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Страница 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Страница 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Страница 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Страница 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Страница 542: ...20 64 MC9328MX1 Reference Manual MOTOROLA Multimedia Card Secure Digital Host Controller Module MMC SD ...
Страница 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Страница 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Страница 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Страница 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Страница 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Страница 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Страница 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Страница 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...