HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 521

• Manufacturer Part Number: HD64F3029XBL25V
• Description: MCU 5V 512K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3029XBL25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: Lead free / RoHS Compliant
• Eeprom Size: -

Rev. 2.0, 06/04, page 492 of 980
No
No
Receiving Serial Data (Asynchronous Mode): Figure 13.7 shows a sample flowchart for
receiving serial data and indicates the procedure to follow.
Read receive data from RDR, and
Read ORER, PER, and FER
clear RDRF flag to 0 in SSR
Clear RE bit to 0 in SCR
Read RDRF flag in SSR
PER FER OPER = 1
All data received?
Start receiving
flags in SSR
RDRF = 1
Figure 13.7 Sample Flowchart for Receiving Serial Data (1)
Initialize
<End>
Yes
Yes
No
(continued on next page)
Error handling
Yes
(5)
(1)
(2)
(4)
(3)
(2)(3)
(4)
(5)
(1)
SCI initialization:
the receive data input function of the RxD
pin is selected automatically.
Receive error handling and break detection:
if a receive error occurs, read the ORER,
PER, and FER flags in SSR to identify the
error. After executing the necessary error
handling, clear the ORER, PER, and FER
flags all to 0. Receiving cannot resume if
any of these flags remains set to 1. When a
framing error occurs, the RxD pin can be
read to detect the break state.
SCI status check and receive data read:
read SSR, check that the RDRF flag is set
to 1, then read receive data from RDR and
clear the RDRF flag to 0. Notification that
the RDRF flag has changed from 0 to 1 can
also be given by the RXI interrupt.
To continue receiving serial data:
check the RDRF flag, read RDR, and clear
the RDRF flag to 0 before the stop bit of the
current frame is received. When the DMAC
is activated by a receive-data-full interrupt
request (RXI) to read RDR, the RDRF flag
is cleared automatically.