HD6432646 Hitachi, HD6432646 Datasheet - Page 320
HD6432646
Manufacturer Part Number
HD6432646
Description
(HD64F264x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432646.pdf
(1155 pages)
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Pin
PF3/LWR/
ADTRG/IRQ3
PF2/WAIT/SEG1
7 (H8S/2646,
H8S/2646R,
H8S/2645)
PF2/WAIT/SEG33
(H8S/2648,
H8S/2648R,
H8S/2647)
PF0/IRQ2
286
Selection Method and Pin Functions
Switches as follows according to the operating mode and the setting of bits
TRGS1, TRGS0, and PF3DDR.
Notes: *1 ADTRG input when TRGS0 = TRGS1 = 1.
Switches as follows according to the operating mode, and the setting of bits
SGS3 to SGS0, the WAITE bit, and bit PF2DDR.
Switches as follows according to the PF0DDR bit.
Operating
Mode
Bus mode
PF3DDR
Pin function
Operating Mode
Setting of SGS3 to
SGS0
WAITE
PF2DDR
Pin
function
PF0DDR
Pin function
*2 When used as an external interrupt input pin, do not use it as an I/O
H8S/2646,
H8S/2646R,
H8S/2645
H8S/2648,
H8S/2648R,
H8S/2647
pin for other functions.
LWR output PF3 input
16-bit bus
mode
—
SEG17
SEG33
output
output
output
SEG
—
—
PF0 input
Modes 4 to 6
Modes 4 to 6
input
0
PF2
0
8-bit bus mode
0
0
output
Port
PF2
1
PF3 output PF3 input
IRQ2 input
ADTRG input
1
WAIT
IRQ3 input
input
—
1
SEG17
SEG33
output
output
output
SEG
—
1
PF0 output
*2
0
*1
Mode 7
Mode 7
1
input
PF2
—
0
PF3 output
Port
—
1
output
PF2
1
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