SH7760 Datasheet, PDF (1021/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

27.2 Input/Output Pins
Table 27.1 shows the MFI pin configuration. To use the MFI , set pin MD7 to MFI mode (MD7 =
0).
Table 27.1 Pin Configuration
Name
MFI data
MFI chip
select
MFI register
select
Abbreviation
MFI-D15 to
MFI-D0
MFI-CS
MFI-RS
MFI
MFI-E/WR
enable/write
MFI read-
write/read
MFI-RW/RD
MFI mode
MFI-MD
MFI interrupt MFI-INT
I/O
Input/
Output
Input
Description
Address/data/command input/output to the MFI
Pins MFI-D7 to MFI-D0 are valid in 8-bit mode.
Chip select input to the MFI
Input
Input
Input
Input
Output
Selects MFI access types
0: Normal access
1: Index/status register access
For a 68-series interface, enable signal to start
data writing and reading
For an 80-series interface, write strobe signal; data
writing at low level
For a 68-series interface, select signal for data
writing or reading
For an 80-series interface, read strobe signal; data
reading at low level
Selects the MFI 68/80-series interface mode
0: 80-series interface
1: 68-series interface
This pin is sampled at a power-on reset by the
RESET pin.
Do not change the level of this pin after a power-on
reset.
Interrupt request to an external device from the
MFI
Rev. 1.0, 02/03, page 971 of 1294