參數(shù)資料
型號(hào): UPD31172F1-48-FN
廠商: NEC Corp.
英文描述: VRC4172TM COMPANION CHIP FOR VR4121TM
中文描述: VRC4172TM伴侶芯片VR4121TM
文件頁數(shù): 11/44頁
文件大?。?/td> 278K
代理商: UPD31172F1-48-FN
Data Sheet U14388EJ2V0DS00
11
μ
PD31172
1.2 Special Status Pins
(1/2)
Signal Name
After Reset
When HOLDAK# = 1
SCLK
Hi-Z
Hi-Z
AD (0:24)
Hi-Z
Hi-Z
DATA (0:31)
Hi-Z
Hi-Z
LCDCS#
RD#
Hi-Z
Hi-Z
WR#
Hi-Z
Hi-Z
LCDRDY
Hi-Z
Hi-Z
ROMCS (2:3)#
Hi-Z
Hi-Z
CKE
Hi-Z
Hi-Z
UUCAS#
Hi-Z
Hi-Z
ULCAS#
Hi-Z
Hi-Z
MRAS (0:1)#
Hi-Z
Hi-Z
UCAS#
Hi-Z
Hi-Z
LCAS#
Hi-Z
Hi-Z
IOR#
IOW#
RESET
IOCS16#
Hi-Z
Hi-Z
IOCHRDY
Hi-Z
Hi-Z
HOLDRQ#
1
1
HOLDAK#
SRAS#
Hi-Z
Hi-Z
SCAS#
Hi-Z
Hi-Z
BUSRQ (0:1)#
BUSAK (0:1)#
1
Normal operation
INTRP
0
Normal operation
IRQ
0
Normal operation
USBINT#
1
Normal operation
PS2INT
0
Normal operation
BUSCLK
ARBCLKSEL
DP (1:2)
1
Normal operation
DN (1:2)
0
Normal operation
PPON (1:2)
0
Normal operation
OCI (1:2)
IEN
WAKE
0
Normal operation
Remark
0: Low level, 1: High level, Hi-Z: High impedance
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