DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 145

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.2.4
WCER is an 8-bit readable/writable register that enables or disables wait-state control of external
three-state-access areas by the wait-state controller.
Bit
Initial value
Read/Write
WCER is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Wait-State Controller Enable 7 to 0 (WCE7 to WCE0): These bits enable or
disable wait-state control of external three-state-access areas.
Since WCER enables or disables wait-state control of external three-state-access areas, these
settings are meaningless in single-chip mode (mode 7).
Bits 7 to 0:
WCE7 to WCE0
0
1
Wait State Controller Enable Register (WCER)
WCE7
R/W
7
1
Description
Wait-state control disabled (pin wait mode 0)
Wait-state control enabled
WCE6
R/W
6
1
Wait-state controller enable 7 to 0
These bits enable or disable wait-state control
WCE5
R/W
5
1
WCE4
R/W
4
1
WCE3
Rev. 3.00 Mar 21, 2006 page 115 of 814
R/W
3
1
WCE2
R/W
2
1
Section 6 Bus Controller
WCE1
R/W
1
1
REJ09B0302-0300
(Initial value)
WCE0
R/W
0
1