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23
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
Timing
requirements
(2) Input and Output Transition Time
Symbol
Parameter
Rated Value
Unit
See Fig
MIN
MAX
23.9.2
tr
High-going
NBDCLK, NBDD0-NBDD3 pins (input),
8ns
[115]
(INPUT)
TransitionTime of
NBDSYNC# pin
Input
JTCK, JTDI, JTMS
10
ns
JTRST pin
2
ms
tf
Low-ging
NBDCLK, NBDD0-NBDD3 pins (input),
8ns
[116]
(INPUT)
Transition Time of
NBDSYNC# pin
Input
JTCK, JTDI, JTMS
10
ns
JTRST pin
2
ms