LPC47N227TQFP Standard Microsystems (SMSC), LPC47N227TQFP Datasheet - Page 138

• Manufacturer Part Number: LPC47N227TQFP
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47N227TQFP

• Lead Free Status / RoHS Status: Not Compliant

The configuration registers are set to their default values at power up (Table 55) and are RESET as
indicated in Table 55 and the register descriptions that follow.
REGISTER
INDEX
CR0C
CR0D
CR1C
CR1D
CR00
CR01
CR02
CR03
CR04
CR05
CR06
CR07
CR08
CR09
CR0A
CR0B
CR0E
CR0F
CR10
CR11
CR12
CR13
CR14
CR15
CR16
CR17
CR18
CR19
CR1A
CR1B
CR1E
CR1F
CR20
CR21
CR22
CR23
CR24
CR25
CR26
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
bit[7:4]=0
bit[7:6]=0
RESET
bit[7]=1
bit[7]=0
Table 55 – Configuration Registers Summary
HARD
0x02
SYSOPT=0:0x2E
SYSOPT=1:0x4E
SYSOPT=0:0x00
SYSOPT=1:0x00
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
VCC POR
Revision
0x9C
0x3C
0x28
0x08
0x70
0x00
0x00
0xFF
0x00
0x00
0x00
0x00
0x00
0x02
0x5A
0x00
0x00
0x80
0x03
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
-
-
-
138
VTR POR
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
FDC Power/Valid Config Cycle
PP Power/Mode/CR Lock
UART 1,2 Power
FDC Miscellaneous
PP and UART Miscellaneous
FDC Setup
Drive Type ID
Auto Power Mgt/Boot Drive Select
Reserved
Test 4
ECP FIFO Threshold/IR MUX
Drive Rate
UART Mode
Device ID
Revision ID
Test 1
Test 2
Test 3
Configuration Base Address 0
Configuration Base Address 1
DSR Shadow
UART1 FCR Shadow
UART2 FCR Shadow
Force FDD Status Change
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Drive Type
FDC Base Address
FDC on PP/EPP Timeout Select
ECP Software Select
Parallel Port Base Address
UART1 Base Address
UART2 Base Address
FDC and PP DMA Select
REGISTER