Z86L81 Datasheet, PDF (34/88 Pages) Maxim Integrated Products – 28-Pin Low-Voltage Infrared Microcontrollers

Z86L81/86/98
28-Pin Low-Voltage Infrared Microcontrollers
28
Register Description
LVD (D) 0Ch. Low-Voltage Detection Register
Bit 0 enables/disables the Low-Voltage Detection Circuit. Bit 1 flags if low voltage
is detected. Interrupt 5 is triggered when the flag bit is set, given that IRQ5 is not
masked.
Note: The LVD flag will be valid after enabling the detection for 20 S (design
estimation, not tested in production). LVD does not work at STOP mode. It
must be disabled during STOP mode in order to reduce current.
Field
LVD
Bit Position
765432--
------1-
-------0
Note:
*Default after POR
R1
0*
R/W 1
0*
Description
Reserved
No Effect
LV flag set
LV flag reset
Enable LVD
Disable LVD
HI8(D)0Bh
This register holds the captured data from the output of the 8-bit Counter/Timer0.
Typically, this register is used to hold the number of counts when the input signal
is 1.
Field
Bit Position
T8_Capture_HI 76543210
Description
R Captured Data
W No Effect
L08(D)0Ah
This register holds the captured data from the output of the 8-bit Counter/Timer0.
Typically, this register is used to hold the number of counts when the input signal
is 0.
Field
Bit Position
T8_Capture_L0 76543210
Description
R Captured Data
W No Effect
19-4615; Rev 0; 4/09