st2024c Sitronix Technology Corporation, st2024c Datasheet - Page 23

• Manufacturer Part Number: st2024c
• Description: 24k 8-bit Single Chip Microcontroller
• Manufacturer: Sitronix Technology Corporation

1
The ST2024C has two timers: Base timer/Timer1, and two
prescalers (PRES and PREW). There are two clock sources
Ver 2.2
1
Address Name
2
2
SYSCK
SENT
$03C
$03E
$021
$023
$026
$027
$030
INTX
.
.
T
T
I
I
IN0
IN1
M
M
BTM
PRS
T1M
T1C
SYS
IREQ
IENA
MUX
E
SEL
E
SRES-PULSE
R
R
O
/
/
RESET
E
OSCX
E
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SENA
W
TCLK
R
V
V
E
E
N
N
PRS[7]
TABLE 12-19: CLOCK SOURCE (TCLK) FOR PRES
SENT
T1C[7]
TABLE 12-20: SUMMARY FOR TIMER REGISTERS
SRES
XSEL
ENABLE
Bit 7
CLEAR
RESET
CK
T
CK
T
1
0
-
-
-
-
C
C
O
O
PRES
PREW
FIGURE 12-6: Prescaler for Timers
PRS[6]
T1C[6]
SENA
OSTP
Bit 6
U
U
OUTPUT
OUTPUT
-
-
-
-
N
N
Clock source(TCLK)
T
T
E
E
PRS[5]
T1C[5]
SENT
XSTP
Bit 5
IRBT
IEBT
R
R
-
-
SYSCK
INTX
OSCX/256
OSCX/128
OSCX/64
OSCX/32
TCLK/256
TCLK/32
TCLK/8
TCLK/2
OSCX/16
OSCX/4
23/54
PRS[4]
T1M[4]
T1C[4]
TEST
Bit 4
IRPT
IEPT
-
-
for PRES and one clock source(OSCX) for PREW. Please
refer to the following table:
BTM[3]
PRS[3]
T1M[3]
T1C[3]
WSKP
Bit 3
IRT1
IET1
-
Event counter
BTM[2]
PRS[2]
T1M[2]
T1C[2]
WAIT
Bit 2
MODE
Timer
-
-
-
BTM[1]
PRS[1]
T1M[1]
IRDAC
T1C[1]
IEDAC
Bit 1
-
-
BTM[0]
PRS[0]
T1M[0]
T1C[0]
Bit 0
IRX
IEX
BASE TIMER
-
-
TIMER 1
0000 0000
0000 0000
000 - - - - -
- - 11 1-11
- - 00 0-00
0000 00- -
- - - - 0000
- - -0 0000
ST2024C
Default
1/31/08