D12350F20IV Renesas Electronics America, D12350F20IV Datasheet - Page 712

• Manufacturer Part Number: D12350F20IV
• Description: IC H8S/2350 MCU 4.5/5.5V 0+K I-T
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12350F20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Type: ROMless
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 18 ROM (H8S/2351 Only)
18.2
The on-chip ROM is connected to the CPU by a 16-bit data bus, and both byte and word data can
be accessed in one state. Even addresses are connected to the upper 8 bits, and odd addresses to
the lower 8 bits. Word data must start at an even address.
The on-chip ROM is enabled and disabled by setting the mode pins (MD
settings are shown in table 18.1.
In normal mode, a maximum of 56 kbytes of ROM can be used.
Table 18.1 Operating Modes and ROM Area
Operating Mode
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Rev. 3.00 Sep 15, 2006 page 676 of 988
REJ09B0330-0300
Operation
Normal expanded mode with
on-chip ROM disabled
Normal expanded mode with
on-chip ROM enabled
Normal single-chip mode
Advanced expanded mode
with on-chip ROM disabled
Advanced expanded mode
with on-chip ROM disabled
Advanced expanded mode
with on-chip ROM enabled
Advanced single-chip mode
MD
0
1
2
Mode Pin
MD
0
1
0
1
1
MD
1
0
1
0
1
0
1
0
2
, MD
On-Chip ROM
Disabled
Enabled (56 kbytes)
Disabled
Enabled
1
, and MD
0
). These