SM59264IHHK SYNCMOS [SyncMOS Technologies,Inc], SM59264IHHK Datasheet - Page 19

• Manufacturer Part Number: SM59264IHHK
• Description: 8 - Bit Micro-controller with 128KB flash & 1KB RAM embedded
• Manufacturer: SYNCMOS [SyncMOS Technologies,Inc]

Specifications subject to change without notice,contact your sales representatives for the most recent information.
SPWM Registers - SPWM Data Register (SPWMD[3:0], $A7 ~$A4)
Example of SPWM timing diagram:
SPFS[1:0]: These two bits is 2’s power parameter to form a frequency divider for input clock.
SPWMD[4:0]: content of SPWM Data Register. It determines duty cycle of SPWM output waveform.
BRM[2:0]: will insert certain narrow pulses among an 8-SPWM-cycle frame
Read:
Write:
Reset value:
Read:
Write:
Reset value:
SPFS1
MOV SPWMD0, #83H
MOV P1CON, #08H
SyncMOS Technologies Inc.
0
0
1
1
May 2002
N = BRM[2:0]
SPFS0
SPWMD
Unused
000
001
010
100
101
011
110
111
[4:0]4
bit-7
bit-7
0
1
0
1
0
*
Divider
SPWMD
Unused
; Enable P1.3 as SPWM output pin
; SPWMD0[4:0]=10h (=16T high, 16T low), BRM[2:0] = 3
[4:0]3
16
2
4
8
0
*
SPWMD
Unused
Number of SPWM cycles inserted in an 8-cycle frame
SPWM clock, Fosc=20MHz
[4:0]2
0
*
1.25MHz
2.5MHz
10MHz
5MHz
SPWMD
Unused
[4:0]1
0
*
19/32
SPWMD
Unused
[4:0]0
0
1
2
3
4
5
6
7
0
*
Unused
SPWM clock, Fosc=24MHz
[2:0]2
BRM
0
*
1.5MHz
12MHz
6MHz
3MHz
SPFS1
[2:0]1
BRM
0
0
Ver 1.0 PID 59264 05/02
SPFS0
[2:0]0
BRM
bit-0
bit-0
SM59264
0
0