HD6417034AFI20V Renesas Electronics America, HD6417034AFI20V Datasheet - Page 191

• Manufacturer Part Number: HD6417034AFI20V
• Description: MCU 5V 0K I-TEMP PB-FREE 112-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7030r

Specifications of HD6417034AFI20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

A high-level duty of 35% or 50% can be selected for the RD signal using the RD duty bit
(RDDTY) in BCR. When RDDTY is 1, the high-level duty is 35% of the T3 or T w state,
lengthening the access time for external devices.
8.6.2
When the address/data multiplexed I/O space is accessed, the WAIT pin input signal is sampled
and a wait state inserted whenever a low level is detected, regardless of the WCR setting. Figure
8.33 shows an example in which a WAIT signal causes one wait state to be inserted.
Read
Write
Figure 8.33 Wait State Timing For Address/Data Multiplexed I/O Space Access
Wait State Control
WRH, WRL
AD15–AD0
AD15–AD0
A21–A0
WAIT
RD
CK
CS
AH
T1
Address
Address
T2
T3
Rev. 7.00 Jan 31, 2006 page 163 of 658
Section 8 Bus State Controller (BSC)
(wait state)
Tw
Data (output)
Data (input)
REJ09B0272-0700
T4