
ML62Q1000 Series User's Manual
Chapter 29 Safety Function
FEUL62Q1000
29-6
29.2.4 SFR Guard Setting Register 1 (SFRGD1)
SFRGD0 is a special function register (SFR) used to disable writing the SFR by the CPU and the DMA Controller.
Data in the specified SFR area is protectable.
Address:
0xF0B6(SFRGD1L/SFRGD1), 0xF0B7(SFRGD1H)
Access:
R/W
Access size: 8/16bit
Initial value:
0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word
SFRGD1
Byte
SFRGD1H
SFRGD1L
Bit
SGD1F
-
-
-
SGD1B SGD1A SGD19 SGD18 SGD17 SGD16 SGD15 SGD14 SGD13 SGD12 SGD11 SGD10
R/W
R/W
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/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
SGD1F
This bit is used to disable SFRs related to the port XT described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
14 to
12
-
Reserved bit
11
SGD1B
This bit is used to disable SFRs related to the port B described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
10
SGD1A
This bit is used to disable SFRs related to the port A described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
9
SGD19
This bit is used to disable SFRs related to the port 9 described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
8
SGD18
This bit is used to disable SFRs related to the port 8 described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
7
SGD17
This bit is used to disable SFRs related to the port 7 described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
6
SGD16
This bit is used to disable SFRs related to the port 6 described in Chapter 17 "General
Purpose Port".
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
5
SGD15
This bit is used to disable SFRs related to the port 5 described in Chapter 17 "General
Purpose Port”.
0: The SFR is writable and readable (Initial value)
1: The SFR is unwritable and readable
Summary of Contents for ML62Q1000 Series
Page 17: ...Chapter 1 Overview...
Page 112: ...Chapter 2 CPU and Memory Space...
Page 154: ...Chapter 3 Reset Function...
Page 166: ...Chapter 4 Power Management...
Page 196: ...Chapter 5 Interrupts...
Page 248: ...Chapter 6 Clock generation Circuit...
Page 274: ...Chapter 7 Low Speed Time Base Counter...
Page 291: ...Chapter 8 16 Bit Timer...
Page 320: ...Chapter 9 Functional Timer FTM...
Page 382: ...Chapter 10 Watchdog Timer...
Page 402: ...Chapter 11 Serial Communication Unit...
Page 456: ...Chapter 12 I2 C Bus Unit...
Page 491: ...Chapter 13 I2 C Master...
Page 512: ...Chapter 14 DMA Controller...
Page 531: ...Chapter 15 Buzzer...
Page 550: ...Chapter 16 Simplified RTC...
Page 559: ...Chapter 17 GPIO...
Page 594: ...Chapter 18 External Interrupt Function...
Page 612: ...Chapter 19 CRC Generator...
Page 632: ...Chapter 20 Analog Comparator...
Page 644: ...Chapter 21 D A Converter...
Page 655: ...Chapter 22 Voltage Level Supervisor...
Page 676: ...Chapter 23 Successive Approximation Type A D Converter...
Page 709: ...Chapter 24 Regulator...
Page 714: ...Chapter 25 Flash Memory...
Page 743: ...Chapter 26 Code Option...
Page 750: ...Chapter 27 LCD Driver...
Page 788: ...Chapter 28 On Chip Debug Function...
Page 795: ...Chapter 29 Safety Function...
Page 813: ...Appendix A...
Page 881: ...Revision History...