Z8F022ASJ020SC Zilog, Z8F022ASJ020SC Datasheet - Page 98
![IC ENCORE XP MCU FLASH 2K 28SOIC](/photos/6/91/69136/269-28-soic_sml.jpg)
Z8F022ASJ020SC
Manufacturer Part Number
Z8F022ASJ020SC
Description
IC ENCORE XP MCU FLASH 2K 28SOIC
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F022ASJ020SC
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
IrDA, UART/USART
Peripherals
Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
Number Of I /o
23
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3355
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8F022ASJ020SC
Manufacturer:
Zilog
Quantity:
372
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Table 50. Timer 0–1 High Byte Register (TxH)
Table 51. Timer 0–1 Low Byte Register (TxL)
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS022825-0908
Timer 0–1 High and Low Byte Registers
Timer Reload High and Low Byte Registers
R/W
R/W
7
0
7
0
The Timer 0–1 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, reads from TxL read the register 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, so simul-
taneous 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.
The Timer 0–1 Reload High and Low Byte (TxRH and TxRL) registers
Table
Reload High Byte register are stored in a temporary holding register. When a write to the
1000 = PWM DUAL OUTPUT mode
1001 = CAPTURE RESTART mode
1010 = COMPARATOR COUNTER mode
53) store a 16-bit reload value, {TRH[7:0], TRL[7:0]}. Values written to the Timer
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
R/W
R/W
4
0
4
0
F00H, F08H
F01H, F09H
TH
TL
R/W
R/W
3
0
3
0
Z8 Encore! XP
R/W
R/W
2
0
2
0
(Table 50
Product Specification
R/W
R/W
and
1
0
1
0
(Table 52
®
F082A Series
Table
51)
R/W
R/W
and
0
0
0
1
Timers
87
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