HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 137

• 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: -

8.2
8.2.1
BCR1 is a 16-bit read/write register that specifies the bus size of the CS spaces.
Write bits 15–0 of BCR1 during the initialization stage after a power-on reset, and do not change
the values thereafter. In on-chip ROM effective mode, do not access any of the CS spaces until
after completion of register initialization. In on-chip ROM ineffective mode, do not access any CS
space other than CS0 until after completion of register initialization.
BCR1 is initialized to H'000F by a power-on reset and in hardware standby mode. It is not
initialized in software standby mode.
Bits 15–4—Reserved: These bits always read as 0. The write value should always be 0.
Bit 3—CS3 Space Size Specification (A3SZ): Specifies the CS3 space bus size. A 0 setting
specifies byte (8-bit) size, and a 1 setting specifies word (16-bit) size.
Bit 2—CS2 Space Size Specification (A2SZ): Specifies the CS2 space bus size. A 0 setting
specifies byte (8-bit) size, and a 1 setting specifies word (16-bit) size.
Bit 3: A3SZ
0
1
Initial value:
Initial value:
Description of Registers
Bus Control Register 1 (BCR1)
R/W:
R/W:
Bit:
Bit:
15
—
—
R
R
0
7
0
Description
Byte (8 bit) size
Word (16 bit) size (initial value)
14
—
—
R
R
0
6
0
13
—
—
R
R
0
5
0
12
—
—
R
R
4
0
0
Rev. 5.00 Jan 06, 2006 page 115 of 818
Section 8 Bus State Controller (BSC)
A3SZ
R/W
11
—
R
3
1
0
A2SZ
R/W
10
—
R
2
1
0
REJ09B0273-0500
A1SZ
R/W
—
R
1
1
9
0
A0SZ
R/W
—
R
8
0
0
1