upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 226

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

5.10 Bus Timing
(1)
Note: AD15-8 hold the data when we access to odd address with 8-bit access.
Remarks: 1. The circles indicate the sampling timing when 0 is set for the programmable wait.
226
AD15-AD0
Read cycle
CLKOUT
ASTB
WAIT
CSn
RD
2. The broken line indicates high impedance.
Figure 5-9: Bus Read Timing (Bus Size: 16 bit, 16-bit Access)
T1
A1
In the case of
AD15 to AD8
T2
8-bit access
AD7 to AD0
D1
Chapter 5 Bus Control Function
T3
User’s Manual U16702EE3V2UD00
T1
A2
Odd address
Data
T2
-
Programmable
TW
wait
D2
Even address
External
TW
wait
Data
-
T3
IDLE
state
TI
A3
T1