PIC10(L)F320/322
4.6 External Clock Mode
4.6.1 EC MODE
The External Clock (EC) mode allows an externally
generated logic level as the system clock source. When
operating in this mode, an external clock source is
connected to the CLKIN input.
TABLE 4-1: SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
CLKRCON
—
CLKROE
—
—
—
—
OSCCON
—
IRCF<2:0>
HFIOFR
—
—
—
26
LFIOFR
HFIOFS
26
Legend: x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by ECWG.
TABLE 4-2: SUMMARY OF CONFIGURATION WORD WITH CLOCK SOURCES
Name Bits Bit -/7
Bit -/6
Bit 13/5
Bit 12/4
Bit 11/3 Bit 10/2
Bit 9/1
CONFIG
Legend:
13:8
—
—
—
WRT<1:0>
BORV
LPBOR
7:0
CP
MCLRE
PWRTE
WDTE<1:0>
BOREN<1:0>
— = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.
Bit 8/0
LVP
FOSC
Register
on Page
20
2011-2015 Microchip Technology Inc.
DS40001585D-page 27