UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 147

• Manufacturer Part Number: UPD78F9212CS-CAB-A
• Description: MCU 8BIT 4KB FLASH 16PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9212CS-CAB-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 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: -
• Connectivity: -

8-bit timer counter H1
<1> The count operation is enabled by setting TMHE1 = 1. Start 8-bit timer counter H1 by masking one count
<2> The CMP11 register value can be changed during timer counter operation. This operation is asynchronous
<3> When the values of 8-bit timer counter H1 and the CMP01 register match, the value of 8-bit timer counter H1
<4> If the CMP11 register value is changed, the value is latched and not transferred to the register. When the
<5> When the values of 8-bit timer counter H1 and the CMP11 register after the change match, the TOH1 output
<6> Clearing the TMHE1 bit to 0 during timer H1 operation makes the INTTMH1 signal and TOH1 output inactive.
(TOLEV1 = 0)
Count clock
clock to count up. At this time, the TOH1 output remains inactive (when TOLEV1 = 0).
to the count clock.
is cleared, the TOH1 output becomes active, and the INTTMH1 signal is output.
values of 8-bit timer counter H1 and the CMP11 register before the change match, the value is transferred to
the CMP11 register and the CMP11 register value is changed (<2>’).
However, three count clocks or more are required from when the CMP11 register value is changed to when
the value is transferred to the register. If a match signal is generated within three count clocks, the changed
value cannot be transferred to the register.
becomes inactive. 8-bit timer counter H1 is not cleared and the INTTMH1 signal is not generated.
INTTMH1
TMHE1
CMP01
CMP11
TOH1
(e) Operation by changing CMP11 (CMP11 = 02H → 03H, CMP01 = A5H)
00H 01H 02H
<1>
Figure 7-10. Operation Timing in PWM Output Mode (4/4)
02H
<2>
80H
CHAPTER 7 8-BIT TIMER H1
A5H 00H 01H 02H 03H
User’s Manual U16994EJ6V0UD
<3>
02H (03H)
<4>
<2>'
A5H
03H
A5H 00H 01H 02H 03H
<5>
A5H 00H
<6>
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