Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 101

• Manufacturer Part Number: Z8F011ASH020EG2156
• Description: 8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F011ASH020EG2156

• Rohs: yes
• Core: eZ8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 1 KB
• Data Ram Size: 256 B
• On-chip Adc: No
• Package / Case: SOIC-20
• Mounting Style: SMD/SMT
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS025113-1212
Bit
Field
RESET
R/W
Address
Bit
Field
RESET
R/W
Address
Timer Control Register Definitions
Timer 0–1 High and Low Byte Registers
R/W
R/W
7
0
7
0
This section defines the features of the following Timer Control registers.
Timer 0–1 High and Low Byte
Timer Reload High and Low Byte
Timer 0–1 PWM High and Low Byte
Timer 0–1 Control
The Timer 0–1 High and Low Byte (TxH and TxL) registers, shown in Tables 50 and 51,
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 content when the timer is enabled; however, when
the timer is disabled, a read from the TxL reads the TxL Register content directly.
Writing to the Timer High and Low Byte registers while the timer is enabled is not recom-
mended. There are no temporary holding registers available for write operations; there-
fore, 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.
R/W
R/W
6
0
6
0
Table 50. Timer 0–1 High Byte Register (TxH)
Table 51. Timer 0–1 Low Byte Register (TxL)
Registers: see page 87
R/W
R/W
5
0
5
0
Registers: see page 83
R/W
R/W
Registers: see page 85
4
0
4
0
F00H, F08H
F01H, F09H
Registers: see page 86
TH
TL
R/W
R/W
3
0
3
0
Timer Control Register Definitions
R/W
R/W
Z8 Encore!
2
0
2
0
Product Specification
R/W
R/W
1
0
1
0
®
F0830 Series
R/W
R/W
0
0
0
1
83