HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 195

• 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: -

Section 7 Bus Controller
7.4.5
Wait Control
When accessing external space, the H8S/2626 Group or H8S/2623 Group can extend the bus cycle
by inserting one or more wait states (T
). There are two ways of inserting wait states: program
w
wait insertion and pin wait insertion using the WAIT pin.
Program Wait Insertion
From 0 to 3 wait states can be inserted automatically between the T
state and T
state on an
2
3
individual area basis in 3-state access space, according to the settings of WCRH and WCRL.
Pin Wait Insertion
Setting the WAITE bit in BCRL to 1 enables wait insertion by means of the WAIT pin. Program
wait insertion is first carried out according to the settings in WCRH and WCRL. Then , if the
WAIT pin is low at the falling edge of in the last T
or T
state, a T
state is inserted. If the
2
w
w
WAIT pin is held low, T
states are inserted until it goes high.
w
This is useful when inserting four or more T
states, or when changing the number of T
states for
w
w
different external devices.
The WAITE bit setting applies to all areas.
Rev. 5.00 Jan 10, 2006 page 169 of 1042
REJ09B0275-0500