SM39A16M1
8-Bit Micro-controller
16KB with ISP Flash
& 1K+256B RAM embedded
7.3
Peripheral Frequency control register
Mnemonic: PFCON
7
6
5
4
-
-
SRELPS[1:0]
T1PS[1:0]: Timer1 Prescaler select
T1PS[1:0]
Prescaler
00
Fosc/12
01
Fosc
10
Fosc/96
11
reserved
T0PS[1:0] Timer0 Prescaler select
T0PS[1:0]
00
01
10
11
7.4
Mode 0 (13-bit Counter/Timer)
Prescaler
Fosc/12
Fosc
Fosc/96
reserved
Address: D9h
1
0
Reset
T0PS[1:0]
00H
3
2
T1PS[1:0]
÷12
OSC
÷96
T1 pin
TR1
GATE1
INT1 pin
NOT
00
01
C/T = 0
C/T = 1
Control
ET1
TL1
TH1
(5 Bits) (8 Bits)
TF1
0
1
0
EA
1
10
T1PS[1:0]
AND
If not higher priority
Interrupt Processing
Jump
001BH
OR
D0D1D2D3D4
D5D6D7
D0D1D2D3D4D5D6D7
TF1
TL1
TH1
Fig. 7-1: Mode 0 -13 bit Timer / counter operation
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M069
Ver C
SM39A16M1
7/31/2013
- 37 -
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
