R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 528

• Manufacturer Part Number: R5F61668RN50FPV
• Description: IC H8SX/1668 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RN50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• For Use With: R0K561668S000BE - KIT STARTER FOR H8SX/1668R0K561664S001BE - KIT STARTER FOR H8SX/1651HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 11 EXDMA Controller (EXDMAC)
Caution is required when the extended repeat area overflow interrupt is used together with block
transfer mode. If transfer is always terminated when extended repeat area overflow occurs in block
transfer mode, the block size must be a power of two, or alternatively, the address register value
must be set so that the end of a block coincides with the end of the extended repeat area range. If
extended repeat area overflow occurs during a block-size transfer in block transfer mode, the
extended repeat area overflow interrupt request is held pending until the end of the block, and
transfer overrun will occur.
The same caution is required when the extended repeat area overflow interrupt is used together
with cluster transfer mode.
Figure 11.16 shows an example in which block transfer mode is used together with the extended
repeat area function.
Rev. 2.00 Sep. 24, 2008 Page 494 of 1468
REJ09B0412-0200
Figure 11.16 Example of Extended Repeat Area Function Operation in Block Transfer
When lower 3 bits (8-byte area) of EDSAR are designated as extended repeat area (SARA4 to
SARA0 = 3), and block size of 5 (bits 23 to 16 in EDTCR = 5) is set in block transfer mode.
External memory
H'23FFFE
H'23FFFF
H'240000
H'240001
H'240002
H'240003
H'240004
H'240005
H'240006
H'240007
H'240008
H'240009
Range of
EDSAR values
H'240000
H'240001
H'240002
H'240003
H'240004
H'240005
H'240006
H'240007
First block
transfer
H'240000
H'240001
H'240002
H'240003
H'240004
Mode
Second block
transfer
H'240000
H'240001
H'240005
H'240006
H'240007
Block transfer in progress
Interrupt
requested