CHAPTER 1 INTRODUCTION
38
User’s Manual U14359EJ4V0UM
(11) Ports
As shown below, the following ports have general port functions and control pin functions.
Port
Port Function
Control Function
Port 0
8-bit I/O
Real-time pulse unit I/O, external interrupt input, PWM output, DMA controller
input
Port 1
4-bit I/O
Real-time pulse unit I/O, external interrupt input, PWM output
Port 2
1-bit input,
7-bit I/O
NMI input, real-time pulse unit I/O, external interrupt input, DMA controller output
Port 3
8-bit I/O
Serial interface I/O, external interrupt input, A/D converter external trigger input
Port 4
6-bit I/O
Serial interface I/O
Port 5
3-bit I/O
Real-time pulse unit I/O, external interrupt input
Port 7
8-bit input
A/D converter input
Port AL
16-bit I/O
External address bus
Port AH
10-bit I/O
External address bus
Port DL
16-bit I/O
External data bus
Port CS
8-bit I/O
External bus interface control signal output
Port CT
6-bit I/O
External bus interface control signal output
Port CM
6-bit I/O
Wait insertion signal input, internal system clock output, external bus interface
control signal I/O, self-refresh request signal input
Port CD
4-bit I/O
External bus interface control signal output
Port BD
4-bit I/O
DMA controller output
1.7
Differences Among Products
Item
µ
PD703103A
µ
PD703105A
µ
PD703106A
µ
PD703107A
µ
PD703106A(A)
µ
PD703107A(A)
µ
PD70F3107A
µ
PD70F3107A(A)
Mask ROM
Flash memory
Internal ROM
None
128 KB
256 KB
128 KB
256 KB
256 KB
Internal RAM
4 KB
10 KB
Flash memory
programming
mode
None
Provided
V
PP
pin
None
Provided
Package
144LQFP
144LQFP
161FBGA
144LQFP
144LQFP
161FBGA
144LQFP
Quality grade
Standard
Special
Standard
Special
Electrical
characteristics
Current consumption differs (refer to the Data Sheet of each product).
Others
Noise immunity and noise radiation differ because the circuit scale and mask layout differ.
Remark
144LQFP: 144-pin plastic LQFP (fine pitch) (20
×
20)
161FBGA: 161-pin plastic FBGA (13
×
13)
