SN8P2318 Series
C-type LCD, RFC 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 53
Version 1.5
5
5
5
SYSTEM OPERATION MODE
5.1 OVERVIEW
The chip builds in four operating mode for difference clock rate and power saving reason. These modes control
oscillators, op-code operation and analog peripheral devices
’ operation.
Normal mode: System high-speed operating mode.
Slow mode: System low-speed operating mode.
Power down mode: System power saving mode (Sleep mode).
Green mode: System idle mode.
Operating Mode Control Block
Power Down Mode
Slow Mode
CLKMD = 1
CLKMD = 0
CPUM1, CPUM0 = 01.
Wake-up condition:
P0, P1 input status is level changing.
T0 timer counter is overflow.
CPUM1, CPUM0 = 10.
Normal Mode
Green Mode
Wake-up condition:
P0, P1 input status is level changing.
T0 timer counter is overflow.
Wake-up condition:
P0, P1 input status is level changing.
Reset Control Block
One of reset trigger sources actives.
One of reset trigger sources actives.
One of reset trigger sources actives.
Operating Mode Clock Control Table
Operating
Mode
Normal Mode
Slow Mode
Green Mode
Power Down
Mode
EHOSC/IHOSC
Running
By STPHX
By STPHX
Stop
ELOSC
Running
Running
Running
Stop
CPU instruction
Executing
Executing
Stop
Stop
T0 timer
By T0ENB
By T0ENB
By T0ENB
Inactive
TC0 timer
By TC0ENB
By TC0ENB
By TC0ENB
PWM active
Inactive
T1 timer
By T1ENB
By T1ENB
Inactive
Inactive
LCD Driver
By LCDENB
By LCDENB
By LCDENB
Inactive
RFC function
By RFCENB
By RFCENB
By RFCENB
Inactive
Watchdog timer
By Watch_Dog
Code option
By Watch_Dog
Code option
By Watch_Dog
Code option
By Watch_Dog
Code option
Internal interrupt
All active
All active
T0
All inactive
External interrupt
All active
All active
All active
All inactive
Wakeup source
-
-
P0, P1, T0, Reset
P0, P1, Reset
EHOSC:
External high-speed oscillator (XIN/XOUT).
IHOSC:
Internal high-speed PLL oscillator.
ELOSC:
External low-speed oscillator (LXIN/LXOUT).