Jameco Electronics 3000 User Manual
User’s Manual
319
C.2 System/User Mode Registers
Table C-3 lists the new I/O registers added to support the System/User mode.
The Enable Dual Mode Register (EDMR) is used to enable and disable the System/User
mode. All other I/O registers listed in the table are “User mode enable” registers for each
peripheral. On startup, User mode access is not allowed to all the peripherals (all writes to
I/O registers for that peripheral are ignored), but can be enabled by writing to the appropri-
ate register. Note that User mode writes to all other I/O registers are always ignored.
mode. All other I/O registers listed in the table are “User mode enable” registers for each
peripheral. On startup, User mode access is not allowed to all the peripherals (all writes to
I/O registers for that peripheral are ignored), but can be enabled by writing to the appropri-
ate register. Note that User mode writes to all other I/O registers are always ignored.
Table C-3. System/User Mode I/O Registers
Register Name
Mnemonic
I/O
Address
R/W
Reset
Enable Dual-Mode Register
EDMR
0x0420
W
00000000
Real Time Clock User Enable Register
RTUER
0x0300
W
00000000
Slave Port User Enable Register
SPUER
0x0320
W
00000000
Parallel Port A User Enable Register
PAUER
0x0330
W
00000000
Parallel Port B User Enable Register
PBUER
0x0340
W
00000000
Parallel Port C User Enable Register
PCUER
0x0350
W
00000000
Parallel Port D User Enable Register
PDUER
0x0360
W
00000000
Parallel Port E User Enable Register
PEUER
0x0370
W
00000000
Parallel Port F User Enable Register
PFUER
0x0338
W
00000000
Parallel Port G User Enable Register
PGUER
0x0348
W
00000000
Input Capture User Enable Register
ICUER
0x0358
W
00000000
I/O Bank User Enable Register
IBUER
0x0380
W
00000000
PWM User Enable Register
PWUER
0x0388
W
00000000
Quad Decode User Enable Register
QDUER
0x0390
W
00000000
External Interrupt User Enable Register
IUER
0x0398
W
00000000
Timer A User Enable Register
TAUER
0x03A0
W
00000000
Timer B User Enable Register
TBUER
0x03B0
W
00000000
Serial Port A User Enable Register
SAUER
0x03C0
W
00000000
Serial Port B User Enable Register
SBUER
0x3D0
W
00000000
Serial Port C User Enable Register
SCUER
0x3E0
W
00000000
Serial Port D User Enable Register
SDUER
0x3F0
W
00000000
Serial Port E User Enable Register
SEUER
0x03C8
W
00000000
Serial Port F User Enable Register
SFUER
0x3D8
W
00000000