r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 380

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

11. Local Bus State Controller (LBSC)
11.2
Table 11.1 shows the LBSC pin configuration.
Table 11.1 Pin Configuration
Rev.1.00 Jan. 10, 2008 Page 350 of 1658
REJ09B0261-0100
Pin Name
A25 to A0
D63 to D0
BS
CS6 to CS0
R/W
RD/FRAME
Input/Output Pins
Function
Address Bus
Data Bus
Bus Cycle Start O
Chip Select 6 to
0
Read/Write
Read/Cycle
Frame
I/O
O
I/O
O
O
O
Description
Address output
Data input/output
These pins are multiplexed as follows:
D63 to D56: PCI, DU and ports A7 to A0 (GPIO
D55 to D48: PCI, DU and ports B7 to B0 (GPIO
D47 to D40: PCI, DU and ports C7 to C0 (GPIO
D39 to D32: PCI, DU and ports D7 to D0 (GPIO
D31 to D24: ports F7 to F0 (GPIO input/output)
D23 to D16: ports G7 to G0 (GPIO input/output)
Signal that indicates the start of a bus cycle
Asserted once for a burst transfer when the MPX
interface is set
Asserted in every data cycle in other burst
transfers
Chip select signals that indicates the area being
accessed. CS5 and CS6 can also be used as
CE1A and CE1B of the PCMCIA respectively.
Data bus input/output direction designation
signal. Also used as the PCMCIA interface write
designation signal
Strobe signal indicating a read cycle.
Used for FRAME signal when the MPX bus is
used
input/output)
input/output)
input/output)
input/output)