r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1299

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r8a77850anbg

Manufacturer Part Number
r8a77850anbg
Description
Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet

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25.3.1
HACCR is a 32-bit read/write register for controlling input/output and monitoring the interface
status.
Initial value:
Initial value:
Bit
31 to 16
15
14 to 12
11
R/W:
R/W:
Bit:
Bit:
Control and Status Register (HACCR)
Bit Name
CR
CDRT
CR
31
15
R
R
0
0
30
14
R
R
0
0
29
13
R
R
0
0
Initial
Value
All 0
0
All 0
0
28
12
R
R
0
0
CDRT WMRT
R/W
R
R
R
W
27
11
W
R
0
0
26
10
W
R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
0: The HAC-connected codec is not ready.
1: The HAC-connected codec is ready.
Reserved
These bits are always read as 0. Write prohibited.
HAC Cold Reset
Use a cold reset only after power-on, or only to exit
from the power-down mode by the power-down
command.
[Write]
0: Always write 0 to this bit before writing 1 again.
1: Performs a cold reset on the HAC-connected codec.
[Read]
Always read as 0.
Codec Ready
25
(When this bit is changed from 0 to 1, a cold reset is
performed.)
R
R
0
9
1
24
R
R
0
8
0
23
R
R
0
7
0
Rev.1.00 Jan. 10, 2008 Page 1269 of 1658
22
R
0
R
0
6
ST
21
W
R
0
0
5
25. Audio Codec Interface (HAC)
20
R
R
0
4
0
19
R
R
0
3
0
REJ09B0261-0100
18
R
R
0
2
0
17
R
R
0
1
0
16
R
R
0
0
0

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