30-34
MC9328MX1 Reference Manual
MOTOROLA
Synchronous Serial Interface (SSI)
30.3.13 SSI Option Register
The SSI Option Register (SOR) allows the user to clear out the receive FIFO and/or the transmit FIFO,
turn the clock off when the SSI is disabled, and reset the frame synchronization and the state machine. This
register also includes a user-programmable field to set wait states.
SOR
SSI Option Register
Addr
0x00218028
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
CLK
OFF
RX_CLR TX_CLR
SYN
RST
TYPE
r
r
r
r
r
r
r
r
r
rw
rw
rw
r
r
r
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 30-21. SSI Option Register Description
Name
Description
Settings
Reserved
Bits 31–7
Reserved—These bits are reserved and should read 0.
CLKOFF
Bit 6
Clock Off
—Turns off the clocks when the SSI is disabled to further
reduce power consumption.
0 = Clocks enabled
when SSI disabled
1 = Clocks disabled
when SSI disabled
RX_CLR
Bit 5
Receiver Clear
—Controls whether the receive FIFO is flushed. The
transmit portion of the SSI is not affected. The software must clear
RX_CLR before the SSI transmitter can operate.
0 = No effect
1 = Clear receive FIFO
TX_CLR
Bit 4
Transmitter Clear
—Controls whether the transmit FIFO is flushed. The
receiver portion of the SSI is not affected. The software must clear
TX_CLR before the SSI transmitter can operate.
0 = No effect
1 = Clear transmit FIFO
Reserved
Bits 3–1
Reserved—These bits are reserved and should read 0.
SYNRST
Bit 0
Frame Sync Reset
—Resets the accumulation of data in the SRX register
and receive FIFO (RXFIFO) on frame synchronization.
0 = No effect
1 = Reset data
accumulation
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 ...