UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 376

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
<1> When TMHE1 = 1 is set, the 8-bit timer H1 starts a count operation. At that time, the carrier clock remains
<2> When the count value of the 8-bit timer counter H1 matches the value of the CMP01 register, the INTTMH1
<3> The CMP11 register is asynchronous to the count clock, and its value can be changed while the 8-bit timer H1 is
<4> When the count value of 8-bit timer counter H1 matches the value (M) of the CMP11 register before the change,
<5> The timing at which the count value of the 8-bit timer counter H1 and the CMP11 register value match again is
8-bit timer counter
default.
signal is output, the carrier signal is inverted, and the timer counter is cleared to 00H. At the same time, the
compare register whose value is to be compared with that of the 8-bit timer counter H1 is changed from the
CMP01 register to the CMP11 register.
operating. The new value (L) to which the value of the register is to be changed is latched. When the count
value of the 8-bit timer counter H1 matches the value (M) of the CMP11 register before the change, the CMP11
register is changed (<3>’).
However, it takes three count clocks or more since the value of the CMP11 register has been changed until the
value is transferred to the register. Even if a match signal is generated before the duration of three count clocks
elapses, the new value is not transferred to the register.
the INTTMH1 signal is output, the carrier signal is inverted, and the timer counter is cleared to 00H. At the same
time, the compare register whose value is to be compared with that of the 8-bit timer counter H1 is changed from
the CMP11 register to the CMP01 register.
indicated by the value after the change (L).
H1 count value
8-bit timer H1
Carrier clock
count clock
INTTMH1
CMP01
TMHE1
CMP11
Figure 8-18. Carrier Generator Mode Operation Timing (3/3)
<1>
00H 01H
(c) Operation when CMP11 is changed
M
<2>
N
<3>
00H 01H
M (L)
M
CHAPTER 8 8-BIT TIMERS H0 AND H1
<4>
<3>’
00H
N
L
N
00H
01H
L
<5>
00H
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