LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 97

• Manufacturer Part Number: LPC47N237-MD
• Description: 3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS
• Manufacturer: SMSC [SMSC Corporation]

3.3v I/O Controller for Port Replicators and Docking Stations
17.4.5 CR04
Note 17.5
Note 17.6
Note 17.7
17.4.6 CR05 – CR06
17.4.7 CR07
SMSC DS – LPC47N237
CR04 can only be accessed in the configuration state and after the CSR has been initialized to 04H.
These registers are reserved, read only, and return 0 when read.
CR07 can only be accessed in the configuration state and after the CSR has been initialized to 07H. CR07
controls auto power management.
BIT NO.
In this mode, EPP can be selected through the ecr register of ECP as mode 100.
SPP can be selected through the ecr register of ECP as mode 000.
MIDI Support: The Musical Instrumental Digital Interface (MIDI) operates at 31.25Kbaud (+/-1%).
1,0
2,3
4
5
6
7
Parallel Port
Extended Modes
Reserved
MIDI 1
Reserved
EPP Type
Reserved
Type: R/W
BIT NAME
(Note 17.7)
Reserved - Read as 0.
Serial Clock Select Port: A low level on this bit disables MIDI
support (default). A high level on this bit enables MIDI support.
Reserved - Read as 0.
0 = EPP 1.9 (default)
1 = EPP 1.7
Reserved - Read as 0.
PP and UART Miscellaneous
DATASHEET
Bit 1
0
0
1
1
Table 17.6 – CR04
Page 97
Bit 0
0
1
0
1
If CR1 bit 3 is a low level then:
Standard and Bi-directional Modes (SPP)
(default)
EPP Mode and SPP
ECP Mode
ECP Mode & EPP Mode
17.6)
DESCRIPTION
Default : 0x00 on VCC POR
(Note 17.6)
(Note 17.5, Note
Revision 0.3 (10-26-04)