DF3026X25V Renesas Electronics America, DF3026X25V Datasheet - Page 479

• Manufacturer Part Number: DF3026X25V
• Description: MCU 3V 256K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3026X25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: -

Retransmission: Retransmission is performed by the SCI in receive mode and transmit mode as
described below.
1. If an error is found when the received parity bit is checked, the PER bit is automatically set to
2. The RDRF bit in SSR is not set for the frame in which the error has occurred.
3. If an error is found when the received parity bit is checked, the PER bit is not set to 1 in SSR.
4. If no error is found when the received parity bit is checked, the receive operation is assumed to
5. When a normal frame is received, the data pin is held in three-state at the error signal
Retransmission when SCI is in Receive Mode
Figure 13.12 illustrates retransmission when the SCI is in receive mode.
1. If the RIE bit in SCR is set to the enable state, an ERI interrupt is requested. The PER bit
should be cleared to 0 in SSR before the next parity bit sampling timing.
have been completed normally, and the RDRF bit is automatically set to 1 in SSR. If the RIE
bit in SCR is set to the enable state, an RXI interrupt is requested.
transmission timing.
RDRF
PER
Ds
D0 D1 D2 D3 D4 D5 D6 D7 Dp DE
Frame n
Figure 13.12 Retransmission in SCI Receive Mode
[2]
[1]
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
Retransmitted frame
Rev. 2.00 Sep 20, 2005 page 439 of 800
Section 13 Smart Card Interface
(DE)
[4]
[3]
Ds D0 D1 D2 D3 D4
REJ09B0260-0200
Frame n+1