D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 802

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• 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-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

Section 17 ROM
Transition to Programming/Erasing State
The boot program will transfer the erasing program, and erase the user MATs and user boot MATs
in that order. On completion of this erasure, ACK will be returned and will enter the
programming/erasing state.
The host should select the device code, clock mode, and new bit rate with device selection, clock-
mode selection, and new bit-rate selection commands, and then send the command for the
transition to programming/erasing state. These procedure should be carried out before sending of
the programming selection command or program data.
Command
• Command, H'40, (1 byte): Transition to programming/erasing state
Response
• Response, H'06, (1 byte): Response to transition to programming/erasing state
Error
Response
• Error response, H'C0, (1 byte): Error response for user boot MAT blank check
• Error code, H'51, (1 byte): Erasing error
Rev.7.00 Feb. 14, 2007 page 768 of 1108
REJ09B0089-0700
The boot program will send ACK when the user MAT and user boot MAT have been erased
by the transferred erasing program.
An error occurred and erasure was not completed.
Waiting for one-bit period
Setting a new bit rate
at the specified bit rate
H'40
H'06
H'C0
Host
H'51
Figure 17.85 New Bit-Rate Selection Sequence
H'06 (ACK) with the new bit rate
H'06 (ACK) with the new bit rate
Setting a new bit rate
H'06 (ACK)
Setting a new bit rate
Boot program