HD6475348R Datasheet, PDF (40/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Table 1-4 Pin Functions (cont)
Pin No.
CP-84, FP-80A,
Type Symbol CG-84 TFP-80C I/O Name and Function
Interrupt NMI
22
11
I NonMaskable Interrupt: Highest-priority interrupt
request. The port 1 control register (P1CR)
determines whether the interrupt is requested on
the rising or falling edge of the NMI input.
IRQ0
8
77
I Interrupt Request 0 and 1: Maskable interrupt
IRQ1
9
78
request pins.
IRQ2
51
38
IRQ3
52
39
IRQ4
53
40
IRQ5
54
41
OperatingMD2
19
8
I Mode: Input pins for setting the MCU operating
mode MD1
18
7
mode according to the table below.
control MD0
17
6
MD2 MD1 MD0 Mode Description
0 0 0 Mode 0 —
0 0 1 Mode 1 Expanded minimum
mode (ROM disabled)
0 1 0 Mode 2 Expanded minimum
mode (ROM enabled)
0 1 1 Mode 3 Expanded maximum
mode (ROM disabled)
1 0 0 Mode 4 Expanded maximum
mode (ROM enabled)
1 0 1 Mode 5 —
1 1 0 Mode 6 —
1 1 1 Mode 7 Single-chip mode
The inputs at these pins must not be changed
while the chip is operating.
19