Section 34 Serial Sound Interface (SSI)
Rev. 1.00 Oct. 01, 2007 Page 1431 of 1956
REJ09B0256-0100
34.3.2 Status
Register
(SSISR)
SSISR is configured by status flags that indicate the operating status of the SSI module and bits
that indicate the current channel number and word number.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
CHNO[1:0]
SWNO
IDST
IIRQ
OIRQ
DIRQ
DMRQ
UIRQ
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
R
R
R
R/W
*
R
R
R
R/W
*
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
1
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Bit Bit
Name
Initial
Value R/W Description
31 to 29
R Reserved
These bits are always read as an undefined value. The
write value should always be 0.
28
DMRQ
0
R
DMA Request Status Flag
This status flag allows the CPU to see the status of the
DMA request of SSI module.
TRMD = 0 (Receive Mode):
•
If DMRQ = 1 then SSIRDR has unread data.
•
If SSIRDR is read then DMRQ = 0 until there is new
unread data.
TRMD = 1 (Transmit Mode):
•
If DMRQ = 1, SSITDR requests data to be written to
continue the transmission onto the audio serial bus.
•
Once data is written to SSITDR then DMRQ = 0
until further transmit data is requested.
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
Page 2025: ......
Page 2026: ...SH7763 Hardware Manual ...