HD6417751 Datasheet, PDF (346/1105 Pages) Renesas Technology Corp – SuperH RISC engine

 Consecutive accesses to the same row address
Connectable area: 3
Settable bus widths: 32, 16
• Synchronous DRAM interface
 Row address/column address multiplexing according to synchronous DRAM capacity
 Burst operation
 Auto-refresh and self-refresh
 Synchronous DRAM control signal timing can be controlled by register settings
 Consecutive accesses to the same row address
Connectable areas: 2, 3
Settable bus widths: 32
• Burst ROM interface
 Wait state insertion can be controlled by program
 Burst operation, executing the number of transfers set in a register
Connectable areas: 0, 5, 6
Settable bus widths: 32, 16, 8
• MPX interface
 Address/data multiplexing
Connectable areas: 0 to 6
Settable bus widths: 32
• Byte control SRAM interface
 SRAM interface with byte control
Connectable areas: 1, 4
Settable bus widths: 32, 16
• PCMCIA interface
 Wait state insertion can be controlled by program
 Bus sizing function for I/O bus width
• Fine refreshing control
 Supports refresh operation immediately after self-refresh operation in low-power DRAM
by means of refresh counter overflow interrupt function
• Refresh counter can be used as interval timer
 Interrupt request generated by compare-match
 Interrupt request generated by refresh counter overflow
Rev. 3.0, 04/02, page 306 of 1064