DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 706

• 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: -

Section 18 Flash Memory (0.18-µm F-ZTAT Version)
18.7.3
RAMER specifies the user MAT area overlaid with part of the on-chip RAM (H'FFA000 to
H'FFAFFF) when performing emulation of programming the user MAT. RAMER should be set in
user mode or user program mode. To ensure dependable emulation, the memory MAT to be
emulated must not be accessed immediately after changing the RAMER contents. When accessed
at such a timing, correct operation is not guaranteed.
Rev. 2.00 Jun. 28, 2007 Page 680 of 864
REJ09B0341-0200
Bit
7 to 4
3
2
1
0
Bit
Bit Name
Initial Value
R/W
RAM Emulation Register (RAMER)
Bit Name

RAMS
RAM2
RAM1
RAM0

R
7
0
Initial
Value
0
0
0
0
0

R
6
0
R/W
R
R/W
R/W
R/W
R/W

R
5
0
Description
Reserved
These are read-only bits and cannot be modified.
RAM Select
Selects the function which emulates the flash memory
using the on-chip RAM.
0: Disables RAM emulation function
1: Enables RAM emulation function (all blocks of the
Flash Memory Area Select
These bits select the user MAT area overlaid with the
on-chip RAM when RAMS = 1. The following areas
correspond to the 4-kbyte erase blocks.
000: H'000000 to H'000FFF (EB0)
001: H'001000 to H'001FFF (EB1)
010: H'002000 to H'002FFF (EB2)
011: H'003000 to H'003FFF (EB3)
100: H'004000 to H'004FFF (EB4)
101: H'005000 to H'005FFF (EB5)
110: H'006000 to H'006FFF (EB6)
111: H'007000 to H'007FFF (EB7)
user MAT are protected against programming and
erasing)

R
4
0
RAMS
R/W
3
0
RAM2
R/W
2
0
RAM1
R/W
1
0
RAM0
R/W
0
0