18
3.7
CPU and Memory related SFR Description
CW6632B Bluetooth 3.0 Audio Player SOC
Version 1.0.0
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10 = bank2
11 = bank3
OV
: Overflow flag
EZ
: Extern instruction zero flag
P
: Odd parity check of ACC
0 = There are even number of „1‟ bits in ACC
1 = There are o
dd number of „1‟ bits in ACC
Register 3-9 SPMODE
– Special mode
Position
7
6
5
4
3
2
1
0
Name
SINT0
SINT1
PWRUP
RAM2CEM
DACRAMCEM
DECRAMCEM
IRAMCEM
IROMCEM
Default
0
0
1
1
1
1
1
1
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SINT0
: Software 0 interrupts pending
0 = No software 0 interrupt
1 = Software 0 interrupt
SINT1
: Software 1 interrupts pending
0 = No software 1 interrupt
1 = Software 1 interrupt
PWRUP
: System power up flag
0 = CPU writes 0 to PWRUP.
1 = System power up or CPU writes 1 to PWRUP.
RAM2CEM
: RAM2 CE mode control
0 = Always stay at 0
1 = Normal
DACRAMCEM
: DAC RAM CE mode control
0 = Always stay at 0
1 = Normal
DECRAMCEM
: DECRAM CE mode control
0 = Always stay at 0
1 = Normal
IRAMCEM
: IRAM CE mode control
0 = Always stay at 0
1 = Normal
IROMCEM
: IROM CE mode control
0 = Always stay at 0
1 = Normal
Register 3-10 SPMODE1
– Special mode 1
Position
7
6
5
4
3
2
1
0
