DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 51

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K 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: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• 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 Jun. 28, 2007 Page 25 of 864
Data area
(4 Gbytes)
Program area
(16 Mbytes)
H'FFFFFFFF
H'00000000
Maximum mode
REJ09B0341-0200
Section 2 CPU
Program area
Data area
(4 Gbytes)