Datasheet

ST72321Rx ST72321ARx ST72321Jx
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16-BIT TIMER (Cont’d)
Table 18. 16-Bit Timer Register Map and Reset Values
Related Documentation
AN 973: SCI software communications using 16-
bit timer
AN 974: Real Time Clock with ST7 Timer Output
Compare
AN 976: Driving a buzzer through the ST7 Timer
PWM function
AN1041: Using ST7 PWM signal to generate ana-
log input (sinusoid)
AN1046: UART emulation software
AN1078: PWM duty cycle switch implementing
true 0 or 100 per cent duty cycle
AN1504: Starting a PWM signal directly at high
level using the ST7 16-Bit timer
Address
(Hex.)
Register
Label
76543210
Timer A: 32
Timer B: 42
CR1
Reset Value
ICIE
0
OCIE
0
TOIE
0
FOLV2
0
FOLV1
0
OLVL2
0
IEDG1
0
OLVL1
0
Timer A: 31
Timer B: 41
CR2
Reset Value
OC1E
0
OC2E
0
OPM
0
PWM
0
CC1
0
CC0
0
IEDG2
0
EXEDG
0
Timer A: 33
Timer B: 43
CSR
Reset Value
ICF1
x
OCF1
x
TOF
x
ICF2
x
OCF2
x
TIMD
0
-
x
-
x
Timer A: 34
Timer B: 44
IC1HR
Reset Value
MSB
xxxxxxx
LSB
x
Timer A: 35
Timer B: 45
IC1LR
Reset Value
MSB
xxxxxxx
LSB
x
Timer A: 36
Timer B: 46
OC1HR
Reset Value
MSB
1000000
LSB
0
Timer A: 37
Timer B: 47
OC1LR
Reset Value
MSB
0000000
LSB
0
Timer A: 3E
Timer B: 4E
OC2HR
Reset Value
MSB
1000000
LSB
0
Timer A: 3F
Timer B: 4F
OC2LR
Reset Value
MSB
0000000
LSB
0
Timer A: 38
Timer B: 48
CHR
Reset Value
MSB
1111111
LSB
1
Timer A: 39
Timer B: 49
CLR
Reset Value
MSB
1111110
LSB
0
Timer A: 3A
Timer B: 4A
ACHR
Reset Value
MSB
1111111
LSB
1
Timer A: 3B
Timer B: 4B
ACLR
Reset Value
MSB
1111110
LSB
0
Timer A: 3C
Timer B: 4C
IC2HR
Reset Value
MSB
xxxxxxx
LSB
x
Timer A: 3D
Timer B: 4D
IC2LR
Reset Value
MSB
xxxxxxx
LSB
x