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參數(shù)資料
| 型號： | SM8958AC40 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded |
| 中文描述： | 8 -位微控制器，32KB閃存 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 509K |
| 代理商： | SM8958AC40 |
September 2002
Specifications subject to change without notice,contact your sales representatives for the most recent information.
13/25 Ver 1.0 PID 8958A 09/02
SyncMOS Technologies Inc. SM8958A
5.2 SPWM Registers - P1CON, SPWMC, SPWMD[4:0]
SPWM Registers - Port1 Configuration Register (P1CON, $9B
)
SPWME[4:0] : When the bit set to one, the corresponding SPWM pin is active as SPWM function. When the bit reset
to zero, the corresponding SPWM pin is active as I/O pin. Five bits are cleared upon reset.
SPWM Registers - SPWM Control Register (SPWMC, $A3
)
SPFS[1:0] : These two bits is 2’s power parameter to form a frequency divider for input clock.
SPWM Registers - SPWM Data Register (SPWMD[4:0], $AC, $A7 ~$A4
)
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
bit-7
bit-0
Read:
Write:
Reset value:
SPWME4
SPWME3
SPWME2
SPWME1
SPWME0
Unused
Unused
Unused
0
0
0
0
0
*
*
*
bit-7
bit-0
Read:
Write:
Reset value:
Unused
Unused
Unused
Unused
Unused
Unused
SPFS1
SPFS0
*
*
*
*
*
*
0
0
SPFS1
0
0
1
1
SPFS0
0
1
0
1
Divider
2
4
8
16
SPWM clock, Fosc=20MHz
10MHz
5MHz
2.5MHz
1.25MHz
SPWM clock, Fosc=24MHz
12MHz
6MHz
3MHz
1.5MHz
bit-7
bit-0
Read:
Write:
Reset value:
SPWMD
[4:0]4
SPWMD
[4:0]3
SPWMD
[4:0]2
SPWMD
[4:0]1
SPWMD
[4:0]0
BRM
[2:0]2
BRM
[2:0]1
BRM
[2:0]0
0
0
0
0
0
0
0
0
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