TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 679

• Manufacturer Part Number: TX4939XBG-400
• Manufacturer: Toshiba

Specifications of TX4939XBG-400

• Cpu Core: TX49/H4 90nm
• Clock Mhz/max Mips: 400/520
• Inst./data Cache: 32KB (4 Way)/32KB (4 Way)
• Tlb: x
• 1cycle Mac: x
• Volts (v): 1.25/2.5/3.3
• Peripherals: DDR, NAND, ATA, ETHERNET, SECURITY, FPU, MMU, SPI, I2S, I2C, PCI, VIDEO, UART, TIMER, RTC
• Companion Chip: TC86C001FG
• Package: PGBA456

ACLINK
24.4.14. ACLC DMA Request Status Register
This register indicates the AC-link slot data DMA request status.
This read-only register shows if any DMA request is pending for each data I/O channel.
after the software deactivates the DMAC channel or disables DMA by ACCTLDIS register bit to complete DMA operation.
In this case, write or read the sample data register (ACAUDODAT and others) to clear the DMA request.
Rev. 3.1 November 1, 2005
Default:
Default:
Bit
31:8
7
6
5
4
3
2
1
0
Name:
Name:
R/W:
R/W:
Bit:
Bit:
Mnemonic Field Name
⎯
MODIREQ
MODOREQ
⎯
AUDIREQ
LFEREQ
CENTREQ
SURRREQ
AUDOREQ
31
15
30
14
Reserved
Modem Data
Reception
Request
Modem Data
Transmission
Request
Reserved
Audio Data
Reception
Request
Audio LFE Data
Transmission
Request
Audio Center
Data
Transmission
Request
Audio Surround
L&R Data
Transmission
Request
Audio PCM L&R
Data
Transmission
Request
29
13
RESERVED
28
12
Description
MODIREQ: Modem Data Reception Request
MODOREQ: Modem Data Transmission Request
AUDIREQ: Audio Data Reception Request
LFEREQ: Audio LFE Data Transmission Request
CENTREQ: Audio Center Data Transmission Request
SURRREQ: Audio Surround L&R Data Transmission Request
AUDOREQ: Audio PCM L&R Data Transmission Request
27
11
Figure 24-19
Table 24-21
R
R
R
R
R
R
R
26
10
0:
1:
0:
1:
0:
1:
0:
1:
0:
1:
0:
1:
0:
1:
No request is pending.
Request is pending.
No request is pending.
Request is pending.
No request is pending.
Request is pending.
No request is pending.
Request is pending.
No request is pending.
Request is pending.
No request is pending.
Request is pending.
No request is pending.
Request is pending.
25
9
24-37
ACDMASTS Register
ACDMASTS Register
RESERVED
24
8
MODI
REQ
23
R
7
0
MODO
REQ
22
R
6
0
Reserv
21
ed
5
AUDI
REQ
20
Toshiba RISC Processor
R
4
0
A DMA request can be pending
LFERE
19
Q
R
3
0
0xF780
CENT
REQ
18
R
2
0
SURR
R/W
⎯
R
R
⎯
R
R
R
R
R
REQ
17
R
1
0
TX4939
AUDO
REQ
16
R
0
0
24
24