R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 75

• 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: -

2.3
The H8SX CPU has two modes for instruction fetch: 16-bit and 32-bit modes. It is recommended
that the mode be set according to the bus width of the memory in which a program is stored. The
instruction-fetch mode setting does not affect operation other than instruction fetch such as data
accesses. Whether an instruction is fetched in 16- or 32-bit mode is selected by the FETCHMD bit
in SYSCR. For details, see section 3.2.2, System Control Register (SYSCR).
2.4
Figure 2.8 shows a memory map of the H8SX CPU. The address space differs depending on the
CPU operating mode.
H'0000
H'FFFF
Normal mode
Instruction Fetch
Address Space
Program area
Data area
(64 kbytes)
H'000000
H'007FFF
H'FF8000
H'FFFFFF
Middle mode
Figure 2.8 Memory Map
Data area
(64 kbytes)
Program area
(16 Mbytes)
H'00000000
H'00FFFFFF
H'FFFFFFFF
Advanced mode
Rev. 2.00 Sep. 24, 2008 Page 41 of 1468
Data area
(4 Gbytes)
Program area
(16 Mbytes)
H'FFFFFFFF
H'00000000
Maximum mode
REJ09B0412-0200
Section 2 CPU
Program area
Data area
(4 Gbytes)