s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 98

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

MEMORY MAP
TMOD1A
Bit
Identifier
RESET Value
Read/Write
Bit Addressing
TMOD1.7
TMOD1.6–.4
TMOD1.3
TMOD1.2
TMOD1.1
TMOD1.0
4-44
— Timer/Counter 1/1A Mode Register
One 16-bit Timer/Counter, Two 8-bit Timer/Counter 1A/1B Configuration Control
Bit
Timer/Counter 1/1A Input Clock Selection Bit
Clear Counter and Resume Counting Control Bit
Enable/Disable 16-bit Timer/Counter 1/1A Bit
Bit 1
Bit 0
0
1
0
0
1
1
1
1
1
0
1
0
0
W
.7
7
0
8
Two 8-bit timer/counter 1A/1B mode (Timer/counter 1A and 1B)
One 16-bit timer/counter mode (Timer/counter 1)
Clear TCNT1A, IRQT1, and TOL1 and resume counting immediately when two 8-
bit timer 1A/1B mode is configured (TMOD1.7 = 0). Clear TCNT1, IRQT1, and
TOL1 and resume counting immediately when one 16-bit timer mode is
configured (TMOD1.7 = 1)
Disable timer/counter 1/1A; retain TCNT1A contents (TMOD1.7 = 0) or TCNT1
(TMOD1.7 = 1)
Enable timer/counter 1/1A
Always logic zero
Always logic zero
0
0
0
0
1
1
0
1
0
1
0
1
W
.6
6
0
8
External clock input (TCL1) on rising edge
External clock input (TCL1) on falling edge
fxx/2
fxx/2
fxx/2
fxx = 4.19 MHz
10
6
4
= 65.5 kHz
= 262 kHz
= 4.09 kHz
W
.5
5
0
8
W
.4
4
0
8
S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
1/8
W
.3
3
0
W
.2
T/C
2
0
8
"0"
W
1
0
8
FA1H, FA0H
"0"
W
0
0
8