NEC VR4181 mPD30181, Руководство пользователя

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CHAPTER 13 GENERAL PURPOSE I/O UNIT (GIU)
User’s Manual U14272EJ3V0UM
248
13.3.2 GPMD1REG (0x0B00 0302)
(1/2)
Bit 15 14 13 12 11 10 9 8
Name GP15MD1 GP15MD0 GP14MD1 GP14MD0 GP13MD1 GP13MD0 GP12MD1 GP12MD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
RTCRST 0 0 0 0 0 0 0 0
Other resets
Note Note Note Note Note Note Note Note
Bit 7 6 5 4 3 2 1 0
Name GP11MD1 GP11MD0 GP10MD1 GP10MD0 GP9MD1 GP9MD0 GP8MD1 GP8MD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
RTCRST 0 0 0 0 0 0 0 0
Other resets Note Note Note Note Note Note Note Note
Bit Name Function
15, 14 GP15MD(1:0) These bits control direction and function of the GPIO15 pin as follows:
00 : General-purpose input
01 : CD2# input
10 : General-purpose output
11 : Color LCD FPD7 output
13, 12 GP14MD(1:0) These bits control direction and function of the GPIO14 pin as follows:
00 : General-purpose input
01 : CD1# input
10 : General-purpose output
11 : Color LCD FPD6 output
11, 10 GP13MD(1:0) These bits control direction and function of the GPIO13 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : Color LCD FPD5 output
9, 8 GP12MD(1:0) These bits control direction and function of the GPIO12 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : Color LCD FPD4 output
7, 6 GP11MD(1:0) These bits control direction and function of the GPIO11 pin as follows:
00 : General-purpose input
01 : RFU
10 : General-purpose output
11 : Programmable chip select 1 output
Note Holds the value before reset
Remark When GPIO15 and GPIO14 pins are not defined as CD2# and CD1# signals respectively, the
corresponding internal card detect signals to CompactFlash controller (ECU) are held to low level (active).