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PRELIMINARY
SYSTEM CONTROLLER
S3C6400X RISC MICROPROCESSOR
3-46
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.
ETM_LOGIC [16]
When S3C6400 uses STOP mode, this field should be
‘1’.
0
RESERVED
[15:9]
DO NOT CHANGE
0x00
TOP_LOGIC [8]
0: LP mode(Retention), 1: active mode(ON), This field
must be ‘0’ before entering STOP mode.
1
RESERVED
[7:2]
DO NOT CHANGE
0x00
PLL_EN [1]
Control PLL operation in STOP mode
(0: disable, 1: enable)
0
OSC_EN [0]
Control X-tal oscillator pad in STOP mode
(0: disable, 1: enable)
0
SLEEP_CFG BIT
DESCRIPTION
RESET
VALUE
RESERVED [31:1]
RESERVED
0x0000_0000
OSC_EN [0]
Control X-tal oscillator pad in SLEEP mode
(0: disable, 1: enable)
0
Note1:
ETMocks must be power-ON before S3C6400 goes STOP mode. That is, STOP_CFG [16],[28] must be
‘1’. Otherwise, it makes unexpected problem during wakeup sequence.
Note2:
All sub-blocks must be power-ON before S3C6400 goes SLEEP mode. Otherwise, it makes unexpected
problem during wakeup sequence.