PXS20RM Datasheet, PDF (1070/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Mode Entry Module (MC_ME)
Table 32-4. Global Status Register (ME_GS) field descriptions (continued)
Field
Description
S_MVR
S_FLA
S_SSCLK1
Main voltage regulator status
0 Main voltage regulator is not ready
1 Main voltage regulator is ready for use
Flash availability status
00 Flash is not available
01 Flash is in power-down mode
10 Flash is in low-power mode
11 Flash is in normal mode and available for use
Secondary system clock source 1 status
0 Secondary system clock source 1 is not stable
1 Secondary system clock source 1 is providing a stable clock
S_PLL1
S_PLL0
S_XOSC
S_IRCOSC
secondary FMPLL status
0 secondary FMPLL is not stable
1 secondary FMPLL is providing a stable clock
system FMPLL status
0 system FMPLL is not stable
1 system FMPLL is providing a stable clock
4-40 MHz crystal oscillator status
0 4-40 MHz crystal oscillator is not stable
1 4-40 MHz crystal oscillator is providing a stable clock
16 MHz internal RC oscillator status
0 16 MHz internal RC oscillator is not stable
1 16 MHz internal RC oscillator is providing a stable clock
S_SYSCLK
System clock switch status — These bits specify the system clock currently used by the system.
0000 16 MHz int. RC osc.
0001 reserved
0010 4–40 MHz crystal osc.
0011 reserved
0100 system FMPLL
0101 reserved
0110 reserved
0111 reserved
1000 reserved
1001 reserved
1010 reserved
1011 reserved
1100 reserved
1101 reserved
1110 reserved
1111 system clock is disabled
32-14
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor