HD64F2318VTE25 Renesas Electronics America, HD64F2318VTE25 Datasheet - Page 549

• Manufacturer Part Number: HD64F2318VTE25
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of HD64F2318VTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• 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: -

13.3.5
Only an internal clock generated by the built-in baud rate generator can be used as the
transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1,
CKS0, BCP1, and BCP0 bits in SMR. The formula for calculating the bit rate is as shown below.
Table 13.5 shows some sample bit rates.
If clock output is selected by setting CKE0 to 1, the clock is output from the SCK pin. The clock
frequency is determined by the bit rate and the setting of bits BCP1 and BCP0.
Where N = Value set in BRR (0 ≤ N ≤ 255)
Table 13.4 Correspondence between n and CKS1, CKS0
n
0
1
2
3
Table 13.5 Examples of Bit Rate B (bits/s) for Various BRR Settings
N
0
1
2
Note: Bit rates are rounded to the nearest whole number.
B = Bit rate (bits/s)
φ = Operating frequency (MHz)
n = See table 13.4
S = Number of internal clock cycles in 1-bit period set by bits BCP1 and BCP0
B =
Clock
(When n = 0 and S = 372)
CKS1
0
1
S × 2
10.00
13441
6720
4480
2n+1
φ
× (N + 1)
CKS0
0
1
0
1
10.714
14400
7200
4800
× 10
13.00
17473
8737
5824
6
14.285 16.00
19200
9600
6400
φ (MHz)
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