HD6417708SF60 Renesas Electronics America, HD6417708SF60 Datasheet - Page 429

• Manufacturer Part Number: HD6417708SF60
• Description: IC SUPERH MPU ROMLESS 144LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

14.3.5
Only the internal clock generated by the on-chip baud rate generator can be used as the
communication clock in the smart card interface. The bit rate for the clock is set by the bit rate
register (SCBRR) and the CKS1 and CKS0 bits in the serial mode register (SCSMR), and is
calculated using the equation below. Table 14.5 shows sample bit rates. If clock output is then
selected by setting CKE0 to 1, a clock with a frequency 372 times the bit rate is output from the
SCK0 pin.
Where:
N = Value set in SCBRR (0 N 255)
B = Bit rate (bit/s)
P = Peripheral module operating frequency (MHz)*
n = 0–3 (table 14.4)
(Z)
(Z)
B =
Clock
1488
Ds
Ds
A
A
2
Z
D0
Z
D7
b. Inverse convention (SDIR, SINV, and O/E are all 1)
2n–1
a. Direct convention (SDIR, SINV, and O/E are all 0)
P
Figure 14.4 Waveform of Start Character
Z
D1
Z
D6
(N + 1)
A
D2
A
D5
10
6
Z
D3
A
D4
Z
D4
A
D3
Z
D5
A
D2
A
D6
A
D1
A
D7
A
D0
Dp
Dp
Z
Z
(Z)
(Z)
State
State
409