參數(shù)資料
型號: STPCINDUSTRIAL
廠商: 意法半導(dǎo)體
英文描述: PC Compatible Embedded Microprocessor
中文描述: PC兼容嵌入式微處理器
文件頁數(shù): 15/55頁
文件大?。?/td> 787K
代理商: STPCINDUSTRIAL
STRAP OPTION
15/55
Issue 1.1
2.1.5 STRAP REGISTER 4 INDEX 3Dh(STRAP4)
Bits 5-0 of this register reflect the status of pins MD[53:48] respectively.
They are use by the chip as follows:
Bits 7-5 Reserved.
Bit 4, y.y Vpresent on board. This bit reflects the
value sampled on MD[52] pin
and is used to notify the
Cardbus socket management unit if the y.y V vcc voltage (where y.y is less than x.x) is present on board
as follows
Setting to ’0’, y.y V Vcc voltage is not available
Setting to ’1’: y.y V Vcc voltage is available.
Bit 3, x.x Vpresent on board. This bit reflects the
value sampled on MD[51] pin
and is used to notify the
Cardbus socket management unit if the x.x V vcc voltage (where x.x is less than 3.3) is present on board
as follows:
Setting to ’0’, x.x V Vcc voltage is not available.
Setting to ’1’: x.x V Vcc voltage is available.
Bit 2, 3.3 V present on board. This bit reflects the
value sampledon MD[50] pin
and is used to notify the
Cardbus socket management unit if the 3.3 V vcc voltage is present on board as follows:
Setting to ’0’, 3.3 V vcc voltage is not available.
Setting to ’1’, 3.3 V vcc voltage is available.
Bit 1, 5 V present on board. This bit reflects the
value sampled on MD[49] pin
and is used to notify the
Cardbus socket management unit if the 5 V vcc voltage is present on board as follows:
Setting to ’0’, 5 V vcc voltage is not available.
Setting to ’1’, 5 V vcc voltage is available.
Bit 0, This bit reflectsthe
value sampled on MD[48] pin
and is used to enable the TFTcontroller outputs
on pads RFU0-RFU11 as follows:
RFU0 : R[2]
RFU1 : R[3]
RFU2 : R[4]
RFU3 : R[5]
RFU4 : G[2]
RFU5 : G[3]
RFU6 : G[4]
RFU7 : G[5]
RFU8 : B[2]
RFU9 : B[3]
RFU10 : B[4]
RFU11 : B[5]
This register defaults to the values sampled on MD[53:48] pins after reset.
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