ZLF645S0P2032G Zilog, ZLF645S0P2032G Datasheet - Page 121

• Manufacturer Part Number: ZLF645S0P2032G
• Description: Microcontrollers (MCU) 32K Flash 512B RAM 20 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2032G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 32 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-20
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

Table 57. Counter/Timer 8 Control Register (CTR0)
Bit
Field
Reset
R/W
Address
PS026407-0408
Bit Position
[7]
[6]
[5]
Caution:
Note:
Counter/Timer 8 Control Register
T8_Enable
R/W
7
0
The Counter/Timer 8 Control register (see
T8 timer.
Writing 1 to CTR0[5] is the only way to reset the Terminal Count status condition. Reset
this bit before using/enabling the counter/timers.
You must be careful when using the OR or AND commands to manipulate CTR0, bit 5 and
CTR1, bits 0 and 1 (DEMODULATION Mode). These instructions use a Read-Modify-
Write sequence in which the current status from the CTR0 and CTR1 registers is ORed or
ANDed with the designated value and then written back into the registers.
Example: When the status of bit 5 is 1, a timer reset condition occurs.
Value
Read
Write
0
1
0
1
0
1
0
1
MODULO-N
SINGLE-
PASS/
Description
T8_Enable—Disable/enable the T8 counter .
Disable counter.
Enable counter. Configure T8 before enabling it.
SINGLE-PASS/MODULO-N
MODULO-N mode. Counter reloads the initial value when terminal count is
reached
SINGLE-PASS mode. Counter stops when the terminal count is reached
Time_Out —This bit is set when the T8 terminal count is reached.
No counter time-out occurred.
Counter time-out occurred.
No effect.
Reset flag to 0. Software must reset this flag before using counter/timers.
R/W
6
0
Time_Out T8 _Clock Capture_INT_Mask Counter_INT_Mask P34_Out
R/W
5
0
Bank D: 00h; Linear: D00h
R/W R/W
4
0
3
0
Table
57) controls the timer function of the
R/W
2
0
ZLF645 Series Flash MCUs
Product Specification
Counter/Timer Registers
R/W
1
0
R/W
0
0
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