Embeetle, an IDE designed from scratch for embedded software developers.address_offset : 0x0 Bytes (0x0)
size : 0x8 byte (0x0)
mem_usage : registers
protection : not protected
Keypad Control Register
address_offset : 0x0 Bytes (0x0)
size : 16 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
KRE : Keypad Row Enable
bits : 0 - 7 (8 bit)
access : read-write
Enumeration:
0 : KRE_0
Row is not included in the keypad key press detect.
0x1 : KRE_1
Row is included in the keypad key press detect.
End of enumeration elements list.
KCO : Keypad Column Strobe Open-Drain Enable
bits : 8 - 15 (8 bit)
access : read-write
Enumeration:
0 : TOTEM_POLE
Column strobe output is totem pole drive.
0x1 : OPEN_DRAIN
Column strobe output is open drain.
End of enumeration elements list.
Keypad Status Register
address_offset : 0x2 Bytes (0x0)
size : 16 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
KPKD : Keypad Key Depress
bits : 0 - 0 (1 bit)
access : read-write
Enumeration:
0 : KPKD_0
No key presses detected
0x1 : KPKD_1
A key has been depressed
End of enumeration elements list.
KPKR : Keypad Key Release
bits : 1 - 1 (1 bit)
access : read-write
Enumeration:
0 : KPKR_0
No key release detected
0x1 : KPKR_1
All keys have been released
End of enumeration elements list.
KDSC : Key Depress Synchronizer Clear
bits : 2 - 2 (1 bit)
access : read-write
Enumeration:
0 : KDSC_0
No effect
0x1 : KDSC_1
Set bits that clear the keypad depress synchronizer chain
End of enumeration elements list.
KRSS : Key Release Synchronizer Set
bits : 3 - 3 (1 bit)
access : read-write
Enumeration:
0 : KRSS_0
No effect
0x1 : KRSS_1
Set bits which sets keypad release synchronizer chain
End of enumeration elements list.
KDIE : Keypad Key Depress Interrupt Enable
bits : 8 - 8 (1 bit)
access : read-write
Enumeration:
0 : KDIE_0
No interrupt request is generated when KPKD is set.
0x1 : KDIE_1
An interrupt request is generated when KPKD is set.
End of enumeration elements list.
KRIE : Keypad Release Interrupt Enable
bits : 9 - 9 (1 bit)
access : read-write
Enumeration:
0 : KRIE_0
No interrupt request is generated when KPKR is set.
0x1 : KRIE_1
An interrupt request is generated when KPKR is set.
End of enumeration elements list.
Keypad Data Direction Register
address_offset : 0x4 Bytes (0x0)
size : 16 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
KRDD : Keypad Row Data Direction
bits : 0 - 7 (8 bit)
access : read-write
Enumeration:
0 : INPUT
ROWn pin configured as an input.
0x1 : OUTPUT
ROWn pin configured as an output.
End of enumeration elements list.
KCDD : Keypad Column Data Direction Register
bits : 8 - 15 (8 bit)
access : read-write
Enumeration:
0 : INPUT
COLn pin is configured as an input.
0x1 : OUTPUT
COLn pin is configured as an output.
End of enumeration elements list.
Keypad Data Register
address_offset : 0x6 Bytes (0x0)
size : 16 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
KRD : Keypad Row Data
bits : 0 - 7 (8 bit)
access : read-write
KCD : Keypad Column Data
bits : 8 - 15 (8 bit)
access : read-write
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