UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 144

• Manufacturer Part Number: UPD78F9221CS-CAC-A
• Description: MCU 8BIT 2KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9221CS-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 2KB (2K 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: -

(2) Timing chart
142
8-bit timer counter H1
<1> The count operation is enabled by setting the TMHE1 bit to 1. The count clock starts counting no more than
<2> When the values of 8-bit timer counter H1 and the CMP01 register match, the value of 8-bit timer counter H1
<3> The INTTMH1 signal and TOH1 output become inactive by clearing the TMHE1 bit to 0 during timer H1
Remark 01H
The timing of the interval timer/square-wave output operation is shown below.
Count clock
1 clock after the operation is enabled.
is cleared, the TOH1 output level is inverted, and the INTTMH1 signal is output.
operation. If these are inactive from the first, the level is retained.
INTTMH1
TMHE1
CMP01
TOH1
Figure 8-7. Timing of Interval Timer/Square-Wave Output Operation (1/2)
N
<1>
00H
FEH
Count start
01H
(a) Basic operation (01H
CHAPTER 8 8-BIT TIMER H1
User’s Manual U16898EJ6V0UD
match interrupt occurrence,
8-bit timer counter H1 clear
Level inversion,
N
N
<2>
Clear
00H
CMP01
01H
Interval time
FEH)
match interrupt occurrence,
8-bit timer counter H1 clear
Level inversion,
N
<2>
Clear
00H
01H 00H
<3>