UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 325

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(4) Clock selection register 6n (CKSR6n)
Address: FF56H After reset: 00H R/W
CKSR60
Note Note the following points when selecting the TM50 output as the base clock.
Caution Make sure POWER60 = 0 when rewriting TPS630 to TPS600.
Remarks 1. f
Symbol
This register selects the base clocks of serial interface UART60 and UART61.
CKSR6n can be set by an 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
Remark CKSR6n can be refreshed (the same value is written) by software during a communication
•
•
It is not necessary to enable the TO50 pin as a timer output pin in any mode.
2. TMC506: Bit 6 of 8-bit timer mode control register 50 (TMC50)
Mode in which the count clock is cleared and started upon a match of TM50 and CR50 (TMC506 = 0)
Start the operation of 8-bit timer/event counter 50 first and then enable the timer F/F inversion
PWM mode (TMC506 = 1)
Start the operation of 8-bit timer/event counter 50 first and then set the count clock to make the duty =
operation (TMC501 = 1).
50%.
TPS630
operation (when bits 7 and 6 (POWER6n, TXE6n) of ASIM6n = 1 or bits 7 and 5 (POWER6n,
RXE6n) of ASIM6n = 1).
TMC501: Bit 1 of TMC50
PRS
7
0
0
0
0
0
0
0
0
0
1
1
1
1
: Peripheral hardware clock frequency
Figure 14-13. Format of Clock Selection Register 60 (CKSR60)
TPS620
CHAPTER 14 SERIAL INTERFACES UART60 AND UART61
Other than above
6
0
0
0
0
0
1
1
1
1
0
0
0
0
TPS610
5
0
0
0
1
1
0
0
1
1
0
0
1
1
User’s Manual U17554EJ4V0UD
TPS600
4
0
0
1
0
1
0
1
0
1
0
1
0
1
f
f
f
f
f
f
f
f
f
f
f
TM50 output
Setting prohibited
PRS
PRS
PRS
PRS
PRS
PRS
PRS
PRS
PRS
PRS
PRS
TPS630
/2
/2
/2
/2
/2
/2
/2
/2
/2
/2
2
3
4
5
6
7
8
9
10
3
4 MHz
2 MHz
1 MHz
500 kHz
250 kHz
125 kHz
62.5 kHz
31.25 kHz 39.06 kHz 78.13 kHz 156.25 kHz
15.625 kHz 19.53 kHz 39.06 kHz 78.13 kHz
7.813 kHz 9.77 kHz
3.906 kHz 4.88 kHz
4 MHz
f
PRS
Note
Base clock (f
=
TPS620
2
5 MHz
2.5 MHz
1.25 MHz
625 kHz
312.5 kHz 625 kHz
156.25 kHz 312.5 kHz 625 kHz
78.13 kHz 156.25 kHz 312.5 kHz
5 MHz
f
PRS
XCLK6
=
TPS610
) selection
10 MHz
5 MHz
2.5 MHz
1.25 MHz
19.53 kHz 39.06 kHz
9.77 kHz
1
10 MHz
f
PRS
=
TPS600
20 MHz
10 MHz
5 MHz
2.5 MHz
1.25 MHz
19.53 kHz
20 MHz
f
PRS
0
=
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