HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 134

• Manufacturer Part Number: HD6473258P10
• Description: IC H8 MCU OTP 32K 64DIP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473258P10

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-DIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

7.2 Register Descriptions
7.2.1 Free-Running Counter (FRC) – H’FF92
Bit
Initial 0
value
Read/ R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Write
The FRC is a 16-bit readable/writable up-counter that increments on an internal pulse generated
from a clock source. The clock source is selected by the clock select 1 and 0 bits (CKS1 and CKS0)
of the timer control register (TCR).
When the FRC overflows from H’FFFF to H’0000, the overflow flag (OVF) in the timer
control/status register (TCSR) is set to 1.
Because the FRC is a 16-bit register, a temporary register (TEMP) is used when the FRC is written
or read. See section 7.3, CPU Interface for details.
The FRC is initialized to H’0000 at a reset and in the standby modes. It can also be cleared by
compare-match A.
7.2.2 Output Compare Registers A and B (OCRA and OCRB) – H’FF94 and H’FF96
Bit
Initial 1
value
Read/ R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Write
OCRA and OCRB are 16-bit readable/writable registers, the contents of which are continually
compared with the value in the FRC. When a match is detected, the corresponding output compare
flag (OCFA or OCFB) is set in the timer control/status register (TCSR).
15
15
14
14
0
1
13
13
0
1
12
12
0
1
11
11
0
1
10
10
0
1
9
0
9
1
126
8
0
8
1
7
0
7
1
6
0
6
1
5
0
5
1
4
0
4
1
3
0
3
1
2
0
2
1
1
0
1
1
0
0
0
1