Section 25 Audio Codec Interface (HAC)
Rev.1.00 Dec. 13, 2005 Page 960 of 1286
REJ09B0158-0100
25.3.2 Command/Status
Address Register (HACCSAR)
HACCSAR is a 32-bit read/write register that specifies the address of the codec register to be read
/written. When requesting a write to/read from a codec register, write the command register
address to HACCSAR. Then the HAC transmits this register address to the codec via slot 1.
After the codec has responded to a read request (HACRSR.STARY = 1), the status address received via slot 1 can be
read out from HACCSAR.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Initial value:
R
R
R
R
R
R
R
R
R
R
R
R
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R/W:
Bit:
Initial value:
R/W:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R
R
R
R
CA3/
SA3
CA2/
SA2
CA1/
SA1
CA0/
SA0
SLR
EQ3
SLR
EQ4
SLR
EQ5
SLR
EQ6
SLR
EQ7
SLR
EQ8
SLR
EQ9
SLR
EQ10
SLR
EQ11
SLR
EQ12
CA6/
SA6
RW
CA5/
SA5
CA4/
SA4
0
Bit Bit
Name
Initial
Value R/W Description
31 to 20
All
0
R
Reserved
Always 0 for read and write.
19
RW
0
R/W
Codec Read/Write Command
0: Notifies the off-chip codec device of a write access to
the register specified in the address field (CA6/SA6 to
CA0/SA0).
Write the data to HACCSDR in advance.
When HACACR.TX12_ATOMIC is 1, the HAC
transmits HACCSAR and HACCSDR as a pair in the
same Tx frame.
When HACACR.TX12_ATOMIC is 0, transmission of
HACCSAR and HACCSDR in the same Tx frame is
not guaranteed.
1: Notifies the off-chip codec device of a read access to
the register specified in the address field (CA6/SA6 to
CA0/SA0).
Содержание SH7780 Series
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Страница 450: ...Section 11 Local Bus State Controller LBSC Rev 1 00 Dec 13 2005 Page 400 of 1286 REJ09B0158 0100 ...
Страница 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Страница 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Страница 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Страница 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Страница 1004: ...Section 24 Multimedia Card Interface MMCIF Rev 1 00 Dec 13 2005 Page 954 of 1286 REJ09B0158 0100 ...
Страница 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Страница 1070: ...Section 26 Serial Sound Interface SSI Module Rev 1 00 Dec 13 2005 Page 1020 of 1286 REJ09B0158 0100 ...
Страница 1104: ...Section 27 NAND Flash Memory Controller FLCTL Rev 1 00 Dec 13 2005 Page 1054 of 1286 REJ09B0158 0100 ...
Страница 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
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Страница 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Страница 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
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