HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 133

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

8.1.3
Table 8.1 shows the bus state controller pin configuration.
Table 8.1
Note: When an 8-bit bus width is selected for external space, WRL is enabled.
8.1.4
The BSC has eight registers. These registers are used to control wait states, bus width, and
interfaces with memories like ROM and SRAM, as well as refresh control. The register
configurations are listed in table 8.2.
All registers are 16 bits. All BSC registers are all initialized by a power-on reset, but are not by a
manual reset. Values are maintained in standby mode.
Signal
A21–A0
D15–D0
CS0–CS3
RD
WRH
WRL
WAIT
BREQ
BACK
When a 16-bit bus width is selected for external space, WRH and WRL are enabled.
Pin Configuration
Register Configuration
Pin Configuration
I/O
O
I/O
O
O
O
O
I
I
O
Description
Address output
16-bit data bus.
Chip select, indicating the area being accessed
Strobe that indicates the read cycle for ordinary space/multiplex I/O.
Strobe that indicates a write cycle to the 3rd byte (D15–D8) for ordinary
space/multiplex I/O. Also output during DRAM access.
Strobe that indicates a write cycle to the least significant byte (D7–D0) for
ordinary space/multiplex I/O. Also output during DRAM access.
Wait state request signal
Bus release request input
Bus use enable output
Rev. 5.00 Jan 06, 2006 page 111 of 818
Section 8 Bus State Controller (BSC)
REJ09B0273-0500