DF2556FC20DV Renesas Electronics America, DF2556FC20DV Datasheet - Page 519

• Manufacturer Part Number: DF2556FC20DV
• Description: IC H8S/2556 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2556FC20DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.9.7
• Problem in Operation: When DDR and DR are set to 1, SCI clock output is used in clocked
1. End of serial data transmission
2. TE bit = 0
3. C/A bit = 0 ... switchover to port output
4. Occurrence of low-level output (see figure 13.38)
synchronous mode, and the SCK pin is changed to the port pin while transmission is ended,
port output is enabled after low-level output occurs for one half-cycle.
When switching the SCK pin to the port pin by making the following settings while DDR = 1,
DR = 1, C/A = 1, CKE1 = 0, CKE0 = 0, and TE = 1, low-level output occurs for one half-
cycle.
Notes when Switching from SCK Pin to Port Pin
Figure 13.37 Sample Flowchart for Mode Transition during Reception
Read receive data in RDR
Read RDRF flag in SSR
Transition to software
<Start of reception>
standby mode, etc.
standby mode, etc.
Exit from software
operating mode?
Yes
Yes
<Reception>
Initialization
RDRF = 1
Change
RE = 0
No
No
RE = 1
[1]
[2]
[1] Receive data being received
[2] Includes module stop mode
Section 13 Serial Communication Interface (SCI)
becomes invalid.
and watch mode.
Rev. 6.00 Sep. 24, 2009 Page 471 of 928
REJ09B0099-0600