UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 443

• 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

(b) Write
(16) CAN module last out-pointer register (C0LOPT)
Remark The value read from the C0LOPT register is undefined if a data frame or remote frame
The C0LOPT register indicates the number of the message buffer to which a data frame or a remote frame
was transmitted last.
After reset: Undefined
LOPT7-LOPT0
Clear ROVF
C0LOPT
0 to 15
0
1
has never been transmitted from a message buffer. If the THPM bit is set to 1 after the
CAN module has changed from the initialization mode to an operation mode, therefore,
the read value of the C0LOPT register is undefined.
LOPT7
ROVF bit is not changed.
ROVF bit is cleared to 0.
7
When the C0LOPT register is read, the contents of the element indexed by the last out-
pointer (LOPT) of the receive history list are read. These contents indicate the number
of the message buffer to which a data frame or a remote frame was transmitted last.
R
LOPT6
6
CHAPTER 16 CAN CONTROLLER
Address: FF68H
LOPT5
Last Out-Pointer of Transmit History List (LOPT)
User’s Manual U17554EJ4V0UD
5
LOPT4
4
Setting of ROVF Bit
LOPT3
3
LOPT2
2
LOPT1
1
LOPT0
0
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