DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 846

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(1)
The bit rate is calculated by measuring the period of transfer of a low-level byte (H'00) from the
host. The bit rate can be changed by the command for a new bit rate selection. After the bit rate
has been adjusted, the boot program enters the inquiry and selection state. The bit-rate-adjustment
sequence is shown in figure 24.19.
(2)
After adjustment of the bit rate, the protocol for serial communications between the host and the
boot program is as shown below.
1. One-byte commands and one-byte responses
2. n-byte commands or n-byte responses
3. Error response
Rev. 2.00 Sep. 28, 2009 Page 804 of 994
REJ09B0452-0200
These one-byte commands and one-byte responses consist of the inquiries and the ACK for
successful completion.
These commands and responses are comprised of n bytes of data. These are selections and
responses to inquiries.
The program data size is not included under this heading because it is determined in another
command.
The error response is a response to inquiries. It consists of an error response and an error code
and comes two bytes.
Bit-Rate-Adjustment State
Communications Protocol
Host
Figure 24.19 Bit-Rate-Adjustment Sequence
H'00 (completion of adjustment)
H'E6 (boot response)
H'00 (30 times maximum)
(H'FF (error))
H'55
Measuring the
Boot program
1-bit length