32186 datasheet(936/1032 Pages) RENESAS

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ELECTRICAL CHARACTERISTICS

23-20

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

23.9 A.C. Characteristics (when VCCE = 5 V)

• The timing conditions are referenced to VCCE, VCCER, VCC-BUS, VDDE = 5 V ± 0.5 V, Ta = –40°C to

125°C unless otherwise noted.

• The rated values below are guaranteed for the case where the output load capacitance of the measured

pins are 15 pF to 50 pF (guaranteed value during centralizedcapacitance for JTAG related values is 80 pF

and for NBD related is 100 pF).

• The terms W, C, S, R and ID in the rated values shown below have the following meaning. For details

about CS Area Wait Control Regiser, see Section 18.2.1, "CS Area Wait Control Registers."

W: Number of wait states (selected by the CS Area Wait Control Register WAIT bit)

C: "1" when the CS Area Wait Control Register CWAIT bit = 1, or "0" when CWAIT bit = 0

S: "1" when the CS Area Wait Control Register SWAIT bit = 1, or "0" when SWAIT bit = 0

R: "1" when the CS Area Wait Control Register RECOV bit = 1, or "0" when RECOV bit = 0

ID: Number of idle cycles inserted at the end of the bus cycle. Idle cycles may be inserted as

specified by the CS Area Wait Control Register IDLE bit, or inserted by default when a write

operation is executed immediately after a read (ID = 0 or 1).

• Characteristics of synchronous timing to the external bus clock are values only relative to CLKOUT (none

relative to BCLK).

• The CLKOUT/WR# functions are assigned to two separate pins, P70/CLKOUT/WR#/BCLK pins (Pin

No.78) and P150/TIN0/CLKOUT/WR# pins (Pin No.133). Unless otherwise noted, characteristics for

CLKOUT pin/WR# pin are values of Pin No.133.

• The output drive capability is a value under the following conditions. For output drive capability setting,

see Section 8.5, "Port Output Drive Capability Setting Function."

• CLKOUT pin/WR# pin (Pin No.133): high drive power selected

• The rest of the output pins: low drive power (the value upon exiting reset) selected

(1) Output Switching Characteristics Measurement Circuit

23.9 A.C. Characteristics (when VCCE = 5 V)

Measured pin

CMOS output

CL : JTDO pin = 80pF

: NBDD0

−NBDD3 (output), NBDEVNT# = 100pF

: Other than those above = 15

−50pF

Figure 23.9.1 Output Switching Characteristics Measurement Circuit

(2) Input and Output Transition Time

Symbol

Parameter

Rated Value

Unit

See Fig

MIN

MAX

23.9.2

High-going

NBDCLK, NBDD0-NBDD3 pins (input),

8ns

[115]

(INPUT)

TransitionTime of

NBDSYNC# pin

Input

JTCK, JTDI, JTMS

JTRST pin

Low-ging

NBDCLK, NBDD0-NBDD3 pins (input),

8ns

[116]

(INPUT)

Transition Time of

NBDSYNC# pin

Input

JTCK, JTDI, JTMS

JTRST pin

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