CONFIG1

Configuration Byte 1
Name:
CONFIG1
Address:
0x300000
Reset:
Access:
Bit76543210
RSTOSC[2:0]FEXTOSC[2:0]
AccessR/WR/WR/WR/WR/WR/W
Reset111111

Bits 6:4 – RSTOSC[2:0]: Power-up Default Value for COSC

Power-up Default Value for COSC

This value is the Reset default value for COSC and selects the oscillator first used by user software. Refer to COSC operation.
ValueDescription
111 EXTOSC operating per FEXTOSC bits
110 HFINTOSC with HFFRQ = 4 MHz and CDIV = 4:1. Resets COSC/NOSC to b'110'.
101 LFINTOSC
100 SOSC
011 Reserved
010 EXTOSC with 4x PLL, with EXTOSC operating per FEXTOSC bits
001 Reserved
000 HFINTOSC with HFFRQ = 64 MHz and CDIV = 1:1. Resets COSC/NOSC to b'110'.

Bits 2:0 – FEXTOSC[2:0]: External Oscillator Mode Selection

External Oscillator Mode Selection

ValueDescription
111 ECH (external clock) above 8 MHz
110 ECM (external clock) for 500 kHz to 8 MHz
101 ECL (external clock) below 500 kHz
100 Oscillator not enabled
011 Reserved (do not use)
010 HS (crystal oscillator) above 4 MHz
001 XT (crystal oscillator) above 500 kHz, below 4 MHz
000 LP (crystal oscillator) optimized for 32.768 kHz