
Synchronous Serial Interface (SSI)
Freescale Semiconductor
24-29
24.3.16 SSI AC97 Command Data Register (SSI_ACDAT)
SSI_ACDAT contains the outgoing command data slot.
24.3.17 SSI AC97 Tag Register (SSI_ATAG)
Address: 0xFC0B_C040 (SSI_ACDAT)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
R 0 0 0 0 0 0 0 0 0 0 0 0
ACDAT
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 24-23. SSI AC97 Command Data Register (SSI_ACDAT)
Table 24-17. SSI_ACDAT Field Descriptions
Field
Description
31–20
Reserved, must be cleared.
19–0
ACDAT
AC97 command data. The outgoing command data slot carries the information contained in these bits. A direct
write from the core or the information received in the incoming command data slot can update these bits. If the
contents of these bits change due to an update, the SSI_ISR[CMDDU] bit is set. During an AC97 read command,
0x0_0000 in time slot #2.
Address: 0xFC0B_C044 (SSI_ATAG)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ATAG
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 24-24. SSI AC97 Tag Register (SSI_ATAG)
Table 24-18. SSI_ATAG Field Descriptions
Field
Description
31–16
Reserved, must be cleared.
15–0
ATAG
AC97 tag. Writing to this register sets the value of the Tx tag (in AC97 fixed mode). On a read, the processor gets
the last Rx tag value received. It is updated at the start of each received frame. The contents of this register also
generate the transmit tag in AC97 variable mode. When the received tag value changes, the SSI_ISR[RXT] bit is
set, if enabled.
If the SSI_ACR[TIF] bit is set, the TAG value is also stored in Rx FIFO.
Note: Bits 1–0 convey the codec-ID. Because only primary codecs are supported, these bits must be cleared.
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...