Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 121
Z8F16800144ZCOG
Manufacturer Part Number
Z8F16800144ZCOG
Description
KIT DEV FOR Z8F642 MCU 44 PIN
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
MCUr
Specifications of Z8F16800144ZCOG
Contents
Hardware, Software and Documentation
For Use With/related Products
Z8F642
For Use With
269-4661 - KIT ACC ETHERNET SMART CABLE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-4678
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Table 52. Timer 0–2 High Byte Register (TxH)
Table 53. Timer 0–2 Low Byte Register (TxL)
Timer Control Register Definitions
PS025011-1010
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
Timer 0–2 High and Low Byte Registers
R/W
R/W
7
0
7
0
The Timer 0–2 High and Low Byte (TxH and TxL) registers
contain the current 16-bit timer count value. When the timer is enabled, a read from TxH
causes the value in TxL to be stored in a temporary holding register. A read from TxL
always returns this temporary register when the timers are enabled. When the timer is
disabled, reading from the TxL reads the register directly.
Writing to the Timer High and Low Byte registers when the timer is enabled is not
recommended. There are no temporary holding registers available for write operations, so
simultaneous 16-bit writes are not possible. If either the Timer High or Low Byte registers
are written during counting, the 8-bit written value is placed in the counter (High or Low
Byte) at the next clock edge. The counter continues counting from the new value.
TH and TL—Timer High and Low Bytes
These 2 bytes, {TH[7:0], TL[7:0]}, contain the current 16-bit timer count value.
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
P R E L I M I N A R Y
F00H, F08H, F10H
F01H, F09H, F11H
R/W
R/W
4
0
4
0
TH
TL
R/W
R/W
3
0
3
0
Z8 Encore! XP
R/W
R/W
2
0
2
0
(Table 52
Product Specification
R/W
R/W
and
1
0
1
0
®
F1680 Series
Table
53)
R/W
R/W
0
0
0
1
Timers
107
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