D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 549
D12312SVF20V
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 549 of 1146
- Download datasheet (7Mb)
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)
Rev.7.00 Feb. 14, 2007 page 515 of 1108
21505
10753
7168
Section 13 Smart Card Interface
18.00
24194
12097
8065
20.00
26882
13441
8961
REJ09B0089-0700
25.00
33602
16801
11201
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