Preliminary
S3C2451
RISC MICROPROCESSOR
Real Time Clock
14-9
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
14.6.2 Tick Time Count Register 0 (TICNT0)
The TICNT0 register determines tick interrupt enable and tick counter value
S3C2451X supports 32bits tic time counter.
So, from 14 to 8bits of 32bit tick time count value is selected at TICNT0 register (TICNT0[6:0]).
Lower 8bits of 15bit tick time count value is selected at TICNT1 register (TICNT1[7:0]).
Upper 17 bits of 32bit tick time count value is selected at TICNT2 register (TICNT0[16:0]).
NOTES:
Tick time count value = (TICK TIME COUNT 0) x 2
8
+ (T
ICK TIME COUNT 1) + (TICK TIME
COUNT2) x 2
15
Register Address R/W
Description
Reset
Value
TICNT0
0x57000044
R/W
Tick time count register
0x00
TICNT Bit
Description
Initial
State
TICK INT ENABLE
[7]
Tick time interrupt enable.
0 = Disable 1 = Enable
b’0
TICK TIME COUNT 0
[6:0]
[14:8]bits of 32 bit tick time count value
b’0
14.6.3 Tick Time Count Register 1 (TICNT1)
Register Address R/W
Description
Reset
Value
TICNT1
0x5700004C
R/W
Tick time count register 1
0x00
TICNT1 Bit
Description
Initial
State
TICK TIME COUNT 1
[7:0]
Lower 8 bits of 32bit tick time count value
b’000000
14.6.4 Tick Time Count Register 2 (TICNT2)
Register Address R/W
Description
Reset
Value
TICNT2
0x57000048
R/W
Tick time count register 2
0x00
TICNT2 Bit
Description
Initial
State
TICK TIME COUNT 2
[16:0] High 17 bits of 32bit tick time count value
b’000000