DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 297

• Manufacturer Part Number: DF38122HWV
• Description: IC H8/38122 MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of DF38122HWV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Read Access
In access to TCF, when the upper byte is read the upper-byte data is transferred directly to the
CPU and the lower-byte data is transferred to TEMP. Next, when the lower byte is read, the
lower-byte data in TEMP is transferred to the CPU.
In access to OCRF, when the upper byte is read the upper-byte data is transferred directly to the
CPU. When the lower byte is read, the lower-byte data is transferred directly to the CPU.
Figure 9.5 shows an example in which TCF is read when it contains H'AAFF.
Read upper byte
Read lower byte
Note: * H'AB00 if counter has been updated once.
(H'AA)
(H'FF)
CPU
CPU
Figure 9.5 Read Access to TCF (TCF → CPU)
Bus
interface
Bus
interface
(H'AA)
TCFH
TCFH
(AB) *
Rev. 8.00 Mar. 09, 2010 Page 275 of 658
TEMP
(H'FF)
TEMP
(H'FF)
Module data bus
Module data bus
(H'FF)
TCFL
TCFL
(00) *
REJ09B0042-0800
Section 9 Timers