UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 420

• 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

16.7 Control Registers
420
(a) Read
(b) Write
(a) Read
Remark m = 0 to 15
(1) CAN global control register (C0GMCTRL)
After reset: 0000H
C0GMCTRL
C0GMCTRL
The C0GMCTRL register is used to control the operation of the CAN module.
Cautions 1. While the MBON bit is cleared (to 0), software access to the message buffers
Remark MBON bit is cleared (to 0) when the CAN module enters CAN sleep mode/CAN stop
MBON
0
1
Write access and read access to the message buffer register and the transmit/receive history list
registers is disabled.
Write access and read access to the message buffer register and the transmit/receive history list
registers is enabled.
mode or GOM bit is cleared (to 0).
MBON bit is set (to 1) when the CAN sleep mode/the CAN stop mode is released or
GOM bit is set (to 1).
2. This bit is read-only. Even if 1 is written to MBON while it is 0, the value of
(C0MDATA0m, C0MDATA1m, C0MDATA01m, C0MDATA2m, C0MDATA3m,
C0MDATA23m, C0MDATA4m, C0MDATA5m, C0MDATA45m, C0MDATA6m,
C0MDATA7m, C0MDATA67m, C0MDLCm, C0MCONFm, C0MIDLm, C0MIDHm,
and C0MCTRLm), or registers related to transmit history or receive history
(C0LOPT, C0TGPT, C0LIPT, and C0RGPT) is disabled.
MBON does not change, and access to the message buffer registers, or
registers related to transmit history or receive history remains disabled.
MBON
15
15
7
0
0
7
0
R/W
14
14
0
6
0
0
6
0
Bit Enabling Access to Message Buffer Register,
CHAPTER 16 CAN CONTROLLER
Address: FF64H, FF65H
13
13
Transmit/Receive History List Registers
User’s Manual U17554EJ4V0UD
0
5
0
0
5
0
12
12
0
4
0
0
4
0
11
11
0
3
0
3
0
0
10
10
0
2
0
0
2
0
EFSD
EFSD
Set
9
0
1
9
1
0
GOM
GOM
Clear
GOM
Set
8
0
0
8
0