HD6417750SF200V Renesas Electronics America, HD6417750SF200V Datasheet - Page 469

• Manufacturer Part Number: HD6417750SF200V
• Description: MPU 3V 16K PB-FREE 208-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750SF200V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 2.07 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

13.2.3
Bus control register 3 (BCR3) is a 16-bit readable/writable register that specifies the selection of
either the MPX interface or the SRAM interface and specifies the burst length when the
synchronous DRAM interface is used.
BCR3 is initialized to H'0000 by a power-on reset, but is not initialized by a manual reset or in
standby mode. No external memory space other than area 0 should be accessed before register
initialization has been completed.
Bit 15⎯A1MPX/A4MPX Enable (MEMMODE): Determines whether or not the selection of
either the MPX interface or the SRAM interface is by A1MPX and A4MPX rather than by
MEMMPX.
Bit 15: MEMMODE
0
1
Initial value:
Initial value:
Bus Control Register 3 (BCR3) (SH7750R Only)
R/W:
R/W:
Bit:
Bit:
MEMMODE
Description
MPX or SRAM interface is selected by MEMMPX
MPX or SRAM interface is selected by A1MPX and A4MPX
R/W
15
—
R
0
7
0
A1MPX A4MPX
R/W
14
—
R
0
6
0
R/W
13
—
R
0
5
0
12
—
—
R
R
0
4
0
Rev.7.00 Oct. 10, 2008 Page 383 of 1074
Section 13 Bus State Controller (BSC)
11
—
—
R
R
0
3
0
10
—
—
R
R
0
2
0
REJ09B0366-0700
—
—
R
R
9
0
1
0
(Initial value)
SDBL
R/W
—
R
8
0
0
0