Secure Microprocessor Chip

6

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AC CHARACTERISTICS—BYTE-WIDE ADDRESS/DATA BUS TIMING (continued)

PARAMETER

SYMBOL

MIN

MAX

UNITS

Delay from R/W Low to Valid Data Out During

MOVX (Write)

20

ns

Valid Data Out Hold Time from CE1–CE4, PE1–PE4,

or CE1N High

ns

Valid Data Out Hold Time from R/W High

0

ns

Write Pulse Width (R/W Low Time)

ns

RPC AC CHARACTERISTICS—DBB READ

PARAMETER

SYMBOL

MIN

MAX

UNITS

CS, A0 Setup to RD

0

ns

CS, A0 Hold After RD

0

ns

RD Pulse Width

160

ns

CS, A0 to Data Out Delay

130

ns

RD to Data Out Delay

0

130

ns

RD to Data Float Delay

85

ns

RPC AC CHARACTERISTICS—DBB WRITE

PARAMETER

SYMBOL

MIN

MAX

UNITS

CS, A0 Setup to WR

0

ns

CS Hold After WR

0

ns

A0 Hold After WR

20

ns

WR Pulse Width

160

ns

Data Setup to WR

130

ns

Data Hold After WR

20

ns

AC CHARACTERISTICS—DMA

PARAMETER

SYMBOL

MIN

MAX

UNITS

DACK to WR or RD

0

ns

RD or WR to DACK

0

ns

DACK to Data Valid

0

130

ns

RD or WR to DRQ Cleared

110

ns