Renesas SH7781 Manual De Usuario
27. NAND Flash Memory Controller (FLCTL)
Rev.1.00 Jan. 10, 2008 Page 1340 of 1658
REJ09B0261-0100
REJ09B0261-0100
27.2
Input/Output Pins
Table 27.1 shows the pin configuration of the FLCTL.
Table 27.1 Pin Configuration
Corresponding
Flash Memory
Pin
Flash Memory
Pin
Pin Name Function
I/O
NAND Type
Description
FCE Chip
enable
Output
CE
Enables flash memory connected to this
LSI.
LSI.
Multiplexed with
SCIF0_CTS/INTD.
FD7 to
FD0
FD0
Data I/O
I/O
I/O7 to I/O0
I/O pins for command, address, and data.
Multiplexed with MODE3/
IRL7,
MODE2/
IRL6, MODE1/IRL5,
MODE0/
IRL4, MODE11/SCIF4_SCK,
MODE10/SCIF4_RXD,
MODE9/SCIF4_TXD, and
MODE8/SCIF3_SCK.
MODE9/SCIF4_TXD, and
MODE8/SCIF3_SCK.
FCLE Command
latch
enable
Output
CLE
Command Latch Enable (CLE)
Asserted when a command is output.
Multiplexed with MODE4/SCIF3_TXD.
FALE Address
latch
enable
Output
ALE
Address Latch Enable (ALE)
Asserted when an address is output.
Negated when data is input or output.
Negated when data is input or output.
Multiplexed with MODE7/SCIF3_RXD.
FRE Read
enable
Output
RE
Read Enable (
RE)
Reads data at the falling edge of
RE.
Multiplexed with SCIF0_SCK/HSPI_CLK.
FWE Write
enable
Output
WE Write
Enable
Flash memory latches a command,
address, and data at the rising edge of
address, and data at the rising edge of
WE.
Multiplexed with
SCIF0_TXD/HSPI_TX/MODE8.
Multiplexed with
SCIF0_TXD/HSPI_TX/MODE8.