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参数资料
| 型号： | MSM60804GS-K4 |
| 厂商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分类： | 总线控制器 |
| 英文描述： | PCMCIA BUS CONTROLLER, PQFP208 |
| 封装： | 28 X 28 MM, 0.50 MM PITCH, PLASTIC, QFP-208 |
| 文件页数： | 46/54页 |
| 文件大小： | 978K |
| 代理商： | MSM60804GS-K4 |
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Semiconductor
MSM60804
48
Voltage Control Register
The Voltage Control Register is shown below. The bits are defined below.
D7 D6 D5 D4 D3 D2 D1 D0
Slot A : Index value (base + 17h)
Slot B : Index value (base + 57h)
Card VCC Control bit 0
Card VCC Control bit 1
Voltage Control
Voltage Sense bit 0
Voltage Sense bit 1
Reserved
Power Down Select bit
Description
Bit 7
Bit 4
Bit 3
Bit 2
Bit 1
D Bit
Bit 0
Power Down Select : When set to "1", power down mode is set
Voltage sense bit 1 : This bit corresponds to state of VSS1 (voltage sense) pin
Voltage sense bit 0 : This bit corresponds to state of VSS0 (voltage sense) pin
Voltage_Control. When set to "1", PCMCIA input buffers will trigger to 5V TTL levels: when set to "0"
PCMCIA input buffers will trigger to 3V TTL or 3V/5V CMOS input levels.
Card VCC Control bit 1
Card VCC Control bit 0
To enter power down mode the following should be done:
1. Bit 0 of Global General Control register (1E or 5E) set to "1".
2. Bit 7 of Voltage control register 17 set to "1".
To leave the power down mode and enter a normal mode of operation the following should
be done:
1. Bit 7 of Voltage control register (+17h, +57h) set to "0".
2. Bit 0 of Global General Control register (+1Eh, +5Eh) set to "0".
The power down mode affects only internal logic excluding registers +17h and +57h.
VCC Control bits are encoded as follows:
Bit 1
Bit 0
VCCEN1
VCCEN0
Description
0000
No Connected
0100
Reserved
1010
5.0V
1101
3.3V
Voltage Control Register (Read/Write)
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