HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 556

• Manufacturer Part Number: HD64F3048VTF8
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048VTF8

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F3048VX8

Section 14 Smart Card Interface
Examples of Operation in GSM Mode: When switching between smart card interface mode and
software standby mode, use the following procedures to maintain the clock duty cycle.
Use the following procedure to secure the clock duty cycle after powering on.
1. The initial state is port input and high impedance. Use pull-up or pull-down resistors to fix the
2. Fix at the output specified by the CKE1 bit in SCR.
3. Set SMR and SCMR, and switch to smart card interface mode operation.
4. Set the CKE0 bit in SCR to 1 to start clock output.
Rev. 7.00 Sep 21, 2005 page 530 of 878
REJ09B0259-0700
Switching from smart card interface mode to software standby mode
1. Set the P94 data register (DR) and data direction register (DDR) to the values for the fixed
2. Write 0 to the TE and RE bits in the serial control register (SCR) to stop transmit/receive
3. Write 0 to the CKE0 bit in SCR to stop the clock.
4. Wait for one serial clock cycle. During this period, the duty cycle is preserved and clock
5. Write H'00 to the serial mode register (SMR) and smart card mode register (SCMR).
6. Make the transition to the software standby state.
Returning from software standby mode to smart card interface mode
1. Clear the software standby state.
2. Set the CKE1 bit in SCR to the value for the fixed output state at the start of software
3. Set smart card interface mode and output the clock. Clock signal generation is started with
potential.
output state in software standby mode.
operations. At the same time, set the CKE1 bit to the value for the fixed output state in
software standby mode.
output is fixed at the specified level.
standby (the current P94 pin state).
the normal duty cycle.
Figure 14.9 Procedure for Stopping and Restarting the Clock
(1)(2)(3)
Normal operation
(4) (5)(6)
Software standby
mode
(1) (2)(3)
Normal operation