IN16C1054
Table 7: Internal Registers Map…continued
Address
A[2:0]
Register
Read/Write
Comments
Page 2 Registers
0h
1h
2h
3h
None
—
—
LCR[7] = 0, MCR[6] = 1
LCR[7] = 0, MCR[6] = 1
—
GICR : Global Interrupt Control Register
GISR : Global Interrupt Status Register
LCR : Line Control Register
Write-only
Read-only
Read/Write
4h
MCR : Modem Control Register
Read/Write
LCR[7] = 0, MCR[6] = 0,
LCR[7] = 1, LCR ≠ BFh,
LCR[7] = 0, MCR[6] = 1
LCR[7] = 0, MCR[6] = 1
LCR[7] = 0, MCR[6] = 1
LCR[7] = 0, MCR[6] = 1
5h
6h
7h
TCR : Transmit FIFO Count Register
RCR : Receive FIFO Count Register
FSR : Flow Control Status Register
Read-only
Read-only
Read-only
Page 3 Registers
0h
PSR : Page Select Register
Read/Write
LCR = BFh, PSR[0] = 0,
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 0
LCR = BFh, PSR[0] = 0
—
LCR = BFh, PSR[0] = 0
LCR = BFh, PSR[0] = 0
LCR = BFh, PSR[0] = 0
LCR = BFh, PSR[0] = 0
1h
2h
3h
4h
5h
6h
7h
ATR : Auto Toggle Control Register
EFR : Enhanced Feature Register
LCR : Line Control Register
XON1 : Xon1 Character Register
XON2 : Xon2 Character Register
XOFF1 : Xoff1 Character Register
XOFF2 : Xoff2 Character Register
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Page 4 Registers
0h
PSR : Page Select Register
Read/Write
LCR = BFh, PSR[0] = 0,
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 1
—
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 1
LCR = BFh, PSR[0] = 1
1h
2h
3h
4h
5h
6h
7h
AFR : Additional Feature Register
XRCR : Xoff Re-transmit Count Register
LCR : Line Control Register
TTR : Transmit FIFO Trigger Level Register
RTR : Receive FIFO Trigger Level Register
FUR : Flow Control Upper Threshold Register
FLR : Flow Control Lower Threshold Register
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
