SH7785 Datasheet, PDF (381/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Pin Name
WE0/REG
WE1
WE2/IORD
WE3/IOWR
WE4
WE5
WE6
WE7
RDY
IOIS16
BREQ
Function
I/O
Data Enable 0 O
Data Enable 1 O
Data Enable 2 O
Data Enable 3 O
Data Enable 4 O
Data Enable 5 O
Data Enable 6 O
Data Enable 7 O
Ready
I
16-Bit I/O
I
Bus Release I
Request
11. Local Bus State Controller (LBSC)
Description
Write strobe signal for D7 to D0 in SRAM
interface setting
REG signal in PCMCIA interface setting
Write strobe signal for D15 to D8 in SRAM
interface setting
Write strobe signal in PCMCIA interface setting
Write strobe signal for D23 to D16 in SRAM
interface setting
IORD signal in PCMCIA interface setting
Write strobe signal for D31 to D24 in SRAM
interface setting
IOWR signal in PCMCIA interface setting
Write strobe signal for D39 to D32 in SRAM
interface setting
Multiplexed with PCI/Port R0 (GPIO
input/output).
Write strobe signal for D47 to D40 in SRAM
interface setting
Multiplexed with PCI/Port R1 (GPIO
input/output).
Write strobe signal for D55 to D48 in SRAM
interface setting
Multiplexed with PCI/Port R2 (GPIO
input/output).
Write strobe signal for D63 to D56 in SRAM
interface setting
Multiplexed with PCI/Port R3 (GPIO
input/output).
Wait cycle request signal
16-bit I/O designation signal in PCMCIA
interface setting
Valid only in little endian mode
Multiplexed with MODE13, TCLK (TMU
input/output), and Port J0 (GPIO input/output)
Bus release request signal
Multiplexed with Port M1 (GPIO input/output).
Rev.1.00 Jan. 10, 2008 Page 351 of 1658
REJ09B0261-0100