D12321VF20V Renesas Electronics America, D12321VF20V Datasheet - Page 183

• Manufacturer Part Number: D12321VF20V
• Description: IC H8S/2321 MCU ROMLESS 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12321VF20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 86
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

6.2.3
WCRH and WCRL are 8-bit readable/writable registers that select the number of program wait
states for each area.
Program waits are not inserted in the case of on-chip memory or internal I/O registers.
WCRH and WCRL are initialized to H'FF by a reset and in hardware standby mode. They are not
initialized in software standby mode.
WCRH
Bits 7 and 6—Area 7 Wait Control 1 and 0 (W71, W70): These bits select the number of
program wait states when area 7 in external space is accessed while the AST7 bit in ASTCR is set
to 1.
Bit 7
W71
0
1
Bit
Initial value :
R/W
Wait Control Registers H and L (WCRH, WCRL)
Bit 6
W70
0
1
0
1
:
:
W71
R/W
7
1
Description
Program wait not inserted when external space area 7 is accessed
1 program wait state inserted when external space area 7 is accessed
2 program wait states inserted when external space area 7 is accessed
3 program wait states inserted when external space area 7 is accessed
W70
R/W
6
1
W61
R/W
5
1
W60
R/W
4
1
Rev.6.00 Sep. 27, 2007 Page 151 of 1268
W51
R/W
3
1
W50
R/W
2
1
Section 6 Bus Controller
REJ09B0220-0600
W41
R/W
1
1
(Initial value)
W40
R/W
0
1