upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 208

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

5.2 Bus Control Pins
The pins used to connect an external device are listed in the table below.
5.2.1 Pin status when internal ROM, internal RAM, or peripheral I/O is accessed
5.2.2 Pin status in each operation mode
For the pin status of the V850E/RS1 in each operation mode, refer to 2.3 ”Description of Pin Func-
tions” on page 45.
208
AD0 to AD15
CLKOUT
CS0, CS1
WAIT
WR0, WR1
RD
ASTB
HLDRQ
HLDAK
Bus Control Pin
Table 5-2: Pin Status When Internal ROM, Internal RAM, or Peripheral I/O Is Accessed
Access Destination
AD0 to AD15
Alternate-Function Pin
PDL0 to PDL15
PCM0
PCS0, PCS1
PCT0, PCT1
PCT4
PCT6
PCM3
PCM2
PCM1
Table 5-1: Bus Control Pins (Multiplexed Bus)
Chapter 5 Bus Control Function
Address Bus
User’s Manual U16702EE3V2UD00
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Output
Output
I/O
Input
Output
Output
Output
Input
Output
I/O
Address/data bus
External wait control
Internal system clock
Chip select signal
Write strobe signal
Read strobe signal
Address strobe signal
Bus hold control
Data Bus
Hi-Z
Function
Control Signal
Inactive