71M6531D Maxim, 71M6531D Datasheet - Page 29
71M6531D
Manufacturer Part Number
71M6531D
Description
The 71M6531D/F and 71M6532D/F are highly integrated SoC devices with an MPU core, RTC, flash, and LCD driver
Manufacturer
Maxim
Datasheet
1.71M6531D.pdf
(120 pages)
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Part Number:
71M6531D-IM/F
Manufacturer:
MAXIM/美信
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FDS 6531/6532 005
v1.3
Timer/Counter 1:
TMOD[7]
TMOD[6]
TMOD[5:4]
Timer/Counter 0:
TMOD[3]
TMOD[2]
TMOD[1:0]
TCON[7]
TCON[6]
TCON[5]
TCON[4]
TCON[3]
TCON[2]
TCON[1]
TCON[0]
Bit
Bit
Symbol
Symbol
M1:M0
M1:M0
Timer 0 - mode 0
Timer 0 - mode 1
Timer 0 - mode 2
Gate
Gate
TF1
TR1
TF0
TR0
C/T
C/T
IE1
IE0
IT1
IT0
Table 23: The TCON Register Bit Functions (SFR 0x88)
Table 21: Allowed Timer/Counter Mode Combinations
Table 22: TMOD Register Bit Description (SFR 0x89)
© 2005-2010 TERIDIAN Semiconductor Corporation
If TMOD[7] is set, external input signal control is enabled for Counter 0.
external gate control. The TR1 bit in the TCON register (SFR 0x88) must
also be set in order for Counter 1 to increment.
With these settings Counter 1 is incremented on every falling edge of the
logic signal applied to one or more of the interrupt sources controlled by
the DI_RBP, DIO_R1, … DIO_RXX registers.
Selects timer or counter operation. When set to 1, a counter operation is
performed. When cleared to 0, the corresponding register will function as a
timer.
Selects the mode for Timer/Counter 1 as shown in
If TMOD[3] is set, external input signal control is enabled for Counter 0.
external gate control. The TR0 bit in the TCON register (SFR 0x88) must
also be set in order for Counter 0 to increment.
With these settings Counter 0 is incremented on every falling edge of the
logic signal applied to one or more of the interrupt sources controlled by
the DI_RBP, DIO_R1, … DIO_RXX registers.
Selects timer or counter operation. When set to 1, a counter operation is
performed. When cleared to 0, the corresponding register will function as
a timer.
Selects the mode for Timer/Counter 0, as shown in
The Timer 1 overflow flag is set by hardware when Timer 1 overflows.
This flag can be cleared by software and is automatically cleared when an
interrupt is processed.
Timer 1 run control bit. If cleared, Timer 1 stops.
Timer 0 overflow flag set by hardware when Timer 0 overflows. This flag
can be cleared by software and is automatically cleared when an interrupt
is processed.
Timer 0 Run control bit. If cleared, Timer 0 stops.
Interrupt 1 edge flag is set by hardware when the falling edge on external
pin int1 is observed. Cleared when an interrupt is processed.
Interrupt 1 type control bit. Selects either the falling edge or low level on
input pin to cause an interrupt.
Interrupt 0 edge flag is set by hardware when the falling edge on external
pin int0 is observed. Cleared when an interrupt is processed.
Interrupt 0 type control bit. Selects either the falling edge or low level on
input pin to cause interrupt.
Not allowed
Mode 0
Yes
Yes
Not allowed
Timer 1
Function
Function
Mode 1
Yes
Yes
Data Sheet 71M6531D/F-71M6532D/F
Mode 2
Table
Yes
Yes
Yes
Table
20.
20.
29
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