D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 742

• Manufacturer Part Number: D12312SVF20V
• Description: IC H8S/2312S MCU ROMLESS 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVF20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 17 ROM
Bits 15 to 0—Frequency Set (F15 to F0): Set the operating frequency of the CPU. The setting
value must be calculated as the following methods.
1. The operating frequency which is shown in MHz units must be rounded in a number to three
2. The centuplicated value is converted to the binary digit and is written to the FPEFEQ
(b) Flash pass/fail parameter (FPFR: general register R0L of CPU)
This is the return value indicating the initialization result.
Bits 7 to 2—Reserved: Return 0.
Bit 1—Frequency Error Detect (FQ): Returns the check result whether the specified operating
frequency of the CPU is in the range of the supported operating frequency.
Bit 1
FQ
0
1
Bit 0—Success/Fail (SF): Indicates whether initialization is completed normally.
Bit 0
SF
0
1
Rev.7.00 Feb. 14, 2007 page 708 of 1108
REJ09B0089-0700
Bit
Initial value :
R/W
decimal places and be shown in a number of two decimal places.
parameter (general register ER0). For example, when the operating frequency of the CPU is
25.000 MHz, the value is as follows.
•
•
b'0000,1001,1100,0100 (H'09C4) is set to ER0.
The number to three decimal places of 25.000 is rounded and the value is thus 25.00.
The formula that 25.00 × 100 = 2500 is converted to the binary digit and
:
:
Description
Setting of operating frequency is normal
Setting of operating frequency is abnormal
Description
Initialization is ended normally (no error)
Initialization is ended abnormally (error occurs)
—
—
7
0
—
—
6
0
—
—
5
0
—
—
4
0
—
—
3
0
—
—
2
0
R/W
FQ
—
1
R/W
SF
—
0