mode and shuts down the 24 MHz oscillator. See Chapter 11, "EZ-USB Power Management"
for a full description of the Suspend/Resume process.
Table C-20. PCON Register - SFR 87h
Bit
Function
PCON.7
SMOD0 - Serial Port 0 baud rate double enable. When
SMOD0 = 1, the baud rate for Serial Port 0 is doubled.
PCON.6-4
PCON.3
Reserved.
GF1 - General purpose flag 1. Bit-addressable, general
purpose flag for software control.
PCON.2
GF0 - General purpose flag 0. Bit-addressable, general
purpose flag for software control.
PCON.1
PCON.0
This bit should always be set to 0.
IDLE - Idle mode select. Setting the IDLE bit places the
8051 in idle mode.
EZ-USB TRM v1.9
Appendix C: 8051 Hardware Description
C - 37