Z51F3220FNX Datasheet, PDF (124/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
T1CRH T1 EN
–
T1 MS1 T1MS0
–
–
–
T1CC
ADDRESS:BBH
INITIAL VALUE : 0000 _0000 B
1
–
0
0
–
–
–
X
T1CRL
T1CK2 T1 CK1 T1CK0 T1IFR
X
X
X
X
–
T1 POL T1ECE T1CNTR ^ADDRESS:BAH
INITIAL VALUE : 0000 _0000 B
–
X
X
X
EC1
T1ECE
Edge
Detector
fx
T1 CK[2:0]
3
P
fx/1
r fx/2
e _fx/4
M
s
c
fx/8
U
X
a fx/64
l _fx/512
e
r ^fx/2048
T1 EN
16-bit A Data Register
T1ADRH/T1ADRL
Reload
Buffer Register A
A Match
Comparator
16- bit Counter _R
T1CNTH/T1 CNTL
Clear
A Match
T1CC
T1EN
INT_ACK
Clear
T1IFR
To interrupt
block
A Match
T1 CC
T1 EN
Pulse
Generator
T1O
2
T1MS[1 :0] T1POL
Figure 11.14 16-Bit Timer/Counter Mode for Timer 1
T1CNTH/L
Value
Timer 1
(T1IFR)
Interrupt
Match with T1ADRH/L
n
n-1
n-2
Up-count ⁶
5
4
3
2
1
0
Interrupt Period
= PCP x (n+1)
Count Pulse Period
PCP
Occur
Interrupt
Occur
Interrupt
Figure 11.15 16-Bit Timer/Counter 1 Example
TIME
Occur
Interrupt
PS029902-0212
PRELIMINARY
121