HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 177

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

7.2.5
BCRL is an 8-bit readable/writable register that performs selection of the external bus-released
state protocol, enabling or disabling of the write data buffer function, and enabling or disabling of
WAIT pin input.
BCRL is initialized to H'08 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7—Bus Release Enable (BRLE): Enables or disables external bus release.
Bit 6—BREQO Pin Enable (BREQOE): Outputs a signal that requests the external bus master
to drop the bus request signal (BREQ) in the external bus release state, when an internal bus
master performs an external space access, or when a refresh request is generated.
Bit 5—Reserved: This bit cannot be modified and is always read as 0.
Bit 4—Reserved: Only 0 should be written to this bit.
Bit 3—Reserved: Only 1 should be written to this bit.
Bit 2—Reserved: Only 0 should be written to this bit.
Bit 7
BRLE
0
1
Bit 6
BREQOE
0
1
Bit
Initial value
R/W
Bus Control Register L (BCRL)
Description
External bus release is disabled. BREQ, BACK, and BREQO can be used as I/O
ports.
External bus release is enabled.
Description
BREQO output disabled. BREQO can be used as I/O port.
BREQO output enabled.
:
:
:
BRLE
R/W
7
0
BREQOE
R/W
6
0
—
—
5
0
R/W
—
4
0
Rev. 5.00 Jan 10, 2006 page 151 of 1042
R/W
—
3
1
R/W
—
2
0
Section 7 Bus Controller
WDBE
REJ09B0275-0500
R/W
1
0
(Initial value)
(Initial value)
WAITE
R/W
0
0