Z51F3220FNX Datasheet, PDF (143/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
T2CRL (Timer 2 Control Low Register) : CAH
7
6
5
4
3
2
1
0
T2CK2
T2CK1
T2CK0
T2IFR
–
T2POL
–
T2CNTR
R/W
R/W
R/W
R/W
–
R/W
–
R/W
Initial value : 00H
T2CK[2:0]
T2IFR
T2POL
T2CNTR
Select Timer 2 clock source. fx is main system clock frequency
T2CK2 T2CK1 T2CK0 Description
0
0
0
fx/512
0
0
1
fx/128
0
1
0
fx/32
0
1
1
fx/8
1
0
0
fx/4
1
0
1
fx/2
1
1
0
fx/1
1
1
1
T1 A Match
When T2 Match Interrupt occurs, this bit becomes ‘1’. For clearing bit,
write ‘0’ to this bit or auto clear by INT_ACK signal.
0
T2 interrupt no generation
1
T2 interrupt generation
T2O/PWM2O Polarity Selection
0
Start High (T2O/PWM2O is low level at disable)
1
Start Low (T2O/PWM2O is high level at disable)
Timer 2 Counter Read Control
0
No effect
1
Load the counter value to the B data register (When write,
automatically cleared “0” after being loaded)
PS029902-0212
PRELIMINARY
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