HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 27
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
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Table 1-3 Pin Functions (cont)
Type
Refresh
controller
DMA
controller
(DMAC)
16-bit
integrated
timer unit
(ITU)
DREQ
Symbol
RFSH
CS
RD
HWR
LWR
DREQ
TEND
TEND
TCLKD to
TCLKA
TIOCA
TIOCA
TIOCB
TIOCB
TOCXA
TOCXB
3
1
0
1
0
4
0
4
0
,
,
4
4
to
to
Pin No.
87
88
70
71
72
9, 8
94, 93
96 to 93
4, 2, 99,
97, 95
5, 3, 100,
98, 96
6
7
I/O
Output Refresh: Indicates a refresh cycle
Output Row address strobe RAS: Row address
Output Column address strobe CAS: Column
Output Upper write UW: Write enable signal for
Output Lower write LW: Write enable signal for DRAM
Input
Output Transfer end 1 and 0: These signals indicate
Input
Input/
output
Input/
output
Output Output compare XA4: PWM output
Output Output compare XB4: PWM output
12
Name and Function
strobe signal for DRAM connected to area 3
address strobe signal for DRAM connected to
area 3; used with 2WE DRAM.
Write enable WE: Write enable signal for
DRAM connected to area 3; used with 2CAS
DRAM.
DRAM connected to area 3; used with 2WE
DRAM.
Upper column address strobe UCAS:
Column address strobe signal for DRAM
connected to area 3; used with 2CAS DRAM.
connected to area 3; used with 2WE DRAM.
Lower column address strobe LCAS:
Column address strobe signal for DRAM
connected to area 3; used with 2CAS DRAM.
DMA request 1 and 0: DMAC activation
requests
that the DMAC has ended a data transfer
Clock input D to A: External clock inputs
Input capture/output compare A4 to A0:
GRA4 to GRA0 output compare or input
capture, or PWM output
Input capture/output compare B4 to B0:
GRB4 to GRB0 output compare or input
capture, or PWM output
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