z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 119

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 56. Timer 0-2 High Byte Register (TxH)
Table 57. Timer 0-2 Low Byte Register (TXL)
Timer Control Register Definitions
PS022006-0207
RESET
RESET
FIELD
ADDR
FIELD
ADDR
BITS
BITS
R/W
R/W
Timer 0-2 High and Low Byte Registers
7
7
when enabled. When the timer is not enabled, a read from the timer low byte register
returns the actual value in the counter.
The timer 0-2 high and low byte (TxH and TxL) registers (see
contain the current 16-bit timer count value. When the timer is enabled, a read from TxH
stores the value in TxL to a temporary holding register. A read from TxL always returns
this temporary register when the timer is enabled. When the timer is disabled, reads from
the TxL reads the register directly.
Writing to the timer high and low byte registers while 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. When either of 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 two bytes, {TH[7:0], TL[7:0]}, contain the current 16-bit timer count value.
6
6
5
5
FF-E300H, FF-E310H, FF-E320H
FF-E301H, FF-E311H, FF-E321H
P R E L I M I N A R Y
4
4
R/W
R/W
00H
01H
TH
TL
3
3
2
2
Table 56
Product Specification
ZNEO
1
1
and
™
Z16F Series
Table
57)
Timers
0
0
105