UPD30121 NEC [NEC], UPD30121 Datasheet - Page 53

• Manufacturer Part Number: UPD30121
• Description: VR4121TM 64-/32-BIT MICROPROCESSOR
• Manufacturer: NEC [NEC]

Remark The broken lines indicate high impedance.
(12) System bus parameter (IOCHRDY) (3/3)
Note This indicates the minimum setup time to the BUSCLK signal rising edge.
MEMR#/MEMW#,
When WISAA (0:2) bits = 010, BSEL bit = 1
ADD (19:25),
MEMCS16#,
IOR#/IOW#
ADD (9:18)
IOCHRDY
ADD (0:8)
IOCS16#
BUSCLK
(output)
(output)
(output)
(output)
(output)
(output)
(input)
(input)
(input)
(input)
ZWS#
DATA
DATA
SHB#
Invalid
t
BCLKH2
t
AVCK
Invalid
Note
t
BCLKL2
Data Sheet U14691EJ1V0DS00
t
AVCL
t
t
AVSV1
DVCL
t
CLCK
Note
t
CLR
t
CLCH
t
RHCH
t
DS
t
t
t
CHAV
CHRL
DH
t
t
PD30121
CHDV
CHCL
t
CHSV
Invalid
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