
ML62Q1000 Series User's Manual
Chapter 6
Clock Generation Circuit
FEUL62Q1000
6-12
6.2.8 Clock Backup Test Mode Acceptor (FBTACP)
FBTACP is a specific function register (SFR) to enable writing to Clock Backup Test Mode register (FBTCON).
This register is unavailable on the ML62Q1300 group.
Address:
0xF0C4 (FBTACP)
Access:
W
Access size: 8 bits
Initial value: 0x00
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word
-
Byte
-
FBTACP
Bit
-
-
-
-
-
-
-
-
OSCB
ACP7
OSCB
ACP6
OSCB
ACP5
OSCB
ACP4
OSCB
ACP3
OSCB
ACP2
OSCB
ACP1
OSCB
ACP0
R/W
R
R
R
R
R
R
R
R
W
W
W
W
W
W
W
W
Initial
value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit No.
Bit symbol
name
Description
15 to 8
-
Reserved bit
7 to 0
OSCBACP7 to
OSCBACP0
These bits are used to prevent erroneous writing to the FBTCON register.
When "0xFA" and "0xF5" are written to the FBTACP register in this order, writing to the
FBTCON is allowed only once. It requires writing "0xFA" and "0xF5" in this order every time
to enable the continuous writes to the FBTCON.
Any other instructions can be executed between the instruction that writes "0xFA" to
STPACP and the instruction that writes "0xF5". However, if write data other than "0xF5"
after writing "0xFA", the procedure gets invalid, so needs write "0xFA" again.
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...