SH7032 Datasheet, PDF (39/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 1 Overview
Type
Pin No. Pin No.
(PRQP0112 (PTQP0120
Symbol JA-A)
LA-A)
I/O Name and Function
Bus control WAIT 56
59
I Wait: Requests the insertion of wait states
(cont)
(T_W) into the bus cycle when the external
address space is accessed.
RAS 54
57
O Row address strobe: DRAM row-address
strobe timing signal.
CASH 49
52
O Column address strobe high: DRAM column-
address strobe timing signal. Output to
access the upper eight data bits.
CASL 51
54
O Column address strobe low: DRAM column-
address strobe timing. Output to access the
lower eight data bits.
RD
59
64
O Read: Indicates reading of data from an
external device.
WRH 58
63
O Upper write: Indicates write access to the
upper eight bits of an external device.
WRL 57
62
O Lower write: Indicates write access to the
lower eight bits of an external device.
CS0–
CS7
48–51,
53–56
51–54,
56–59
O Chip select 0–7: Chip select signals for
accessing external memory and devices.
AH
63
68
O Address hold: Address hold timing signal for a
device using a multiplexed address/data bus.
HBS,
LBS
23, 58
24, 63
O Upper/lower byte strobe: Upper and lower
byte strobe signals. (Also used as WRH and
A0.)
WR
57
62
O Write: Brought low during write access. (Also
used as WRL.)
DMAC
DREQ0, 67, 69
DREQ1
72, 74
I DMA transfer request (channels 0 and 1):
Input pins for external DMA transfer requests.
DACK0, 66, 68
DACK1
71, 73
O DMA transfer acknowledge (channels 0 and
1): Indicates that DMA transfer is
acknowledged.
16-bit
TIOCA0, 53, 55
integrated TIOCB0
timer pulse _{TIOCA1, 64, 65}
unit (ITU) _TIOCB1
56, 58
69, 70
I/O ITU input capture/output compare (channel 0):
Input capture or output compare pins.
I/O ITU input capture/output compare (channel 1):
Input capture or output compare pins.
TIOCA2, 97, 98
TIOCB2
103, 105 I/O ITU input capture/output compare (channel 2):
Input capture or output compare pins.
TIOCA3, 100, 101 107, 108 I/O ITU input capture/output compare (channel 3):
TIOCB3
Input capture or output compare pins.
Rev. 7.00 Jan 31, 2006 page 13 of 658
REJ09B0272-0700