UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 483

• 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

counter 00 by port input switch control (ISC0), without connectingTI000, externally.
The input source of the timer value according to a trigger signal (TSOUT) can be input to the 16-bit timer/event
Remark ISC0: Bit 0 of the input switch control register (ISC) (see Figure 14-19)
Caution The time stamp function using TSLOCK bit is to stop toggle of TSOUT bit by receiving a data
P00/TI000
frame in message buffer 0. Therefore, message buffer 0 must be set as a receive message
buffer. Since a receive message buffer cannot receive a remote frame, toggle of TSOUT bit
cannot be stopped by reception of a remote frame. Toggle of TSOUT bit does not stop when a
data frame is received in a message buffer other than message buffer 0.
For these reasons, a data frame cannot be received in message buffer 0 when the CAN module
is in the normal operation mode with ABT, because message buffer 0 must be set as a transmit
message buffer. In this operation mode, therefore, the function to stop toggle of TSOUT bit by
TSLOCK bit cannot be used.
Output latch
(P00)
Figure 16-36. Port Input Switch Control
Port mode
Selector
(PM00)
CHAPTER 16 CAN CONTROLLER
User’s Manual U17554EJ4V0UD
controller
CAN
<ISC0>
0: Select TI000 (P00)
1: Select TSOUT
switch control
Port input
Selector
(ISC0)
TI000 input
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