HD6473837HV Renesas Electronics America, HD6473837HV Datasheet - Page 202

• Manufacturer Part Number: HD6473837HV
• Description: MCU 3/5V 60K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473837HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 84
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.3.2
Timer Mode Register B (TMB)
TMB is an 8-bit read/write register for selecting the auto-reload function and input clock.
Upon reset, TMB is initialized to H'78.
Bit 7—Auto-Reload Function Select (TMB7): Bit 7 selects whether timer B is used as an
interval timer or auto-reload timer.
Bit 7: TMB7
0
1
Bits 6 to 3—Reserved Bits: Bits 6 to 3 are reserved; they always read 1, and cannot be modified.
Bits 2 to 0—Clock Select (TMB2 to TMB0): Bits 2 to 0 select the clock input to TCB. For
external event counting, either the rising or falling edge can be selected.
Bit 2: TMB2
0
1
Note: * The edge of the external event signal is selected by bit IEG1 in the IRQ edge select register
Bit
Initial value
Read/Write
(IEGR). See 3.3.2, Interrupt Control Registers, for details on the IRQ edge select register.
Be sure to set bit IRQ1 in port mode register 1 (PMR1) to 1 before setting bits TMB2 to
TMB0 to 111.
Register Descriptions
Bit 1: TMB1
0
1
0
1
TMB7
R/W
Description
Interval timer function selected
Auto-reload function selected
7
0
—
—
6
1
Bit 0: TMB0
0
1
0
1
0
1
0
1
—
—
5
1
—
—
4
1
Description
Internal clock: /8192
Internal clock: /2048
Internal clock: /512
Internal clock: /256
Internal clock: /64
Internal clock: /16
Internal clock: /4
External event (TMIB): rising or falling edge*
—
—
3
1
TMB2
R/W
2
0
TMB1
R/W
1
0
(initial value)
(initial value)
TMB0
R/W
0
0
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