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F75121 参数 Datasheet PDF下载

F75121图片预览
型号: F75121
PDF下载: 下载PDF文件 查看货源
内容描述: 动态VID控制+ 8 GPIO数据表 [Dynamic VID Control + 8 GPIO Datasheet]
分类和应用:
文件页数/大小: 45 页 / 937 K
品牌: FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
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7.2 Status Register – Index 02h  
Power-on default [7:0] =0000_000xb  
Bit  
7-4  
3
Name  
Reserved  
R/W  
RO  
PWR  
Description  
VSB3V  
POWR_DOWN  
FUNC_SEL  
RO  
VSB3V If this bit is set to 1, it mean the chip is in power down mode  
VSB3V VID and GPIO function select. This is dedicated pin. if input value is  
1(external pull-down 10K), the function is selected to VID. Otherwise, the  
input value is 0, the function is selected to GPIO.  
2
RO  
1
0
I2C_ADDR  
RO  
VSB3V GPIO serial bus address Select. Internal pull-down 100K ohms are address  
0x9C. If external is pull-up 10K ohms, the address is 0x6E. This pin is  
trapped during the VSB3VOK.  
STS_SLOTOCC  
R/W  
VBAT  
Indicate the SLOTOCC# pin value. This pin will be latched till write this bit  
to 1. Writing 0 is invalid.  
7.3 Configuration and function select Register – Index 03h  
Power-on default [7:0] =0000_0000b  
Bit  
Name  
Reserved  
R/W  
RO  
PWR  
Description  
7
VSB3V  
6
IRQ_LEVEL  
R/W  
VSB3V Select IRQ Polarity (Level). Set to 1, IRQ is low active and SMI# is high  
active. Default, the IRQ is high active and SMI# is low active.  
5
IRQ_MODE  
R/W  
R/W  
VSB3V IRQ/SMI# mode select. 0 – Level mode (IRQ mode), 1 – Pulse Mode  
(SMI# mode). If pulse mode is selected, the active pulse is over 100us.  
4-3  
PIN12_MODE  
VSB3V 00: GPIO12  
01: LED12 IN this mode can use REG 0x06(bit5,4) to select LED  
frequency.  
10: IRQ  
11: RSTOUT1#:  
2
PIN11_MODE  
PIN10_MODE  
R/W  
R/W  
VSB3V 0: GPIO11  
1: LED11 IN this mode can use REG 0x06(bit3,2) to select LED  
frequency.  
1-0  
VSB3V 00: GPIO10  
01: LED10 IN this mode can use REG 0x06(bit1,0) to select LED  
frequency.  
- 11 -  
July, 2007  
V0.24P  
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