Renesas NU85E Preliminary User's Manual page 29

Pin Name
Instruction IBDRDY
cache pins
IBDLE3 to IBDLE0
IBEDI31 to IBEDI0
IIDRRQ
IIEA25 to IIEA2
IIAACK
IIDLEF
IIEDI31 to IIEDI0
IIBTFT
IIRCAN
BCUNCH
IBBTFT
Data cache IDDARQ
pins
IDAACK
IDDRRQ
IDDWRQ
IDSEQ4
IDSEQ2
IRRSA
IDRETR
IDUNCH
IDDRDY
IDRRDY
IDHUM
IDEA27 to IDEA0
IDED31 to IDED0
IDES
RCU pins DBI5 to DBI0
DBO14 to DBO0
DBB15 to DBB0
Peripheral EVASTB
evaluation chip
EVDSTB
mode pins
EVAD15 to EVAD0
EVIEN
EVOEN
Note 1
EVLKRT
EVIREL
Notes 1. Connected internally to bus holder.
2. When using the data cache, always connect this pin to the IDES pin of the data cache. Leave open
when unused.
CHAPTER 2 PIN FUNCTIONS
I/O
Output Data ready output to instruction cache
Output Data latch enable output to instruction cache
Output Data output to instruction cache
Output Fetch request output to instruction cache
Output Fetch address output to instruction cache
Input Address acknowledge input from instruction cache
Input Data latch enable input from instruction cache
Input Data input from instruction cache
Output Branch target fetch status output to instruction cache
Output Code cancel status output to instruction cache
Output Uncache status output to instruction cache
Input NEC reserved pin (input low level)
Output Read/write access request output to data cache
Output Acknowledge output
Input VSB read operation request input to BCU
Input VSB write operation request input to BCU
Input Read/write operation type setting input
Input Read/write operation type setting input
Output VDB hold status output
Output Read retry request output
Output Uncache status output
Output Read data ready output
Input Read data ready input from data cache
Input Hit under miss-hit read input
Input Address input
Note 1
I/O Data input/output
Output NEC reserved pin
Input Debug control input
Output Debug control output
Note 1
I/O Debug control input/output
Input Address strobe input
Input Data strobe input
Note 1
I/O Address/data input/output
Output EVADn input enable output (n = 15 to 0)
Output EVADn output enable output (n = 15 to 0)
I/O Lock/retry input/output
Input Standby release input
Preliminary User's Manual A14874EJ3V0UM
Function
Note 2
(3/4)
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