SC16C752BIBS Philips Semiconductors, SC16C752BIBS Datasheet - Page 19

• Manufacturer Part Number: SC16C752BIBS
• Description: 5 V/ 3.3 V and 2.5 V dual UART/ 5 Mbit/s (max.)/ with 64-byte FIFOs
• Manufacturer: Philips Semiconductors

Philips Semiconductors
7. Register descriptions
9397 750 14443
Product data
Each register is selected using address lines A0, A1, A2, and in some cases, bits
from other registers. The programming combinations for register selection are shown
in
Table 9:
[1]
[2]
[3]
[4]
[5]
[6]
A2
0
0
0
0
1
1
1
1
0
0
0
1
1
1
1
1
1
1
Fig 13. Crystal oscillator connections.
Table
MCR[7] can only be modified when EFR[4] is set.
Accessed by a combination of address pins and register bits.
Accessible only when LCR[7] is logic 1.
Accessible only when LCR is set to 10111111 (xBF).
Accessible only when EFR[4] = 1 and MCR[6] = 1, i.e., EFR[4] and MCR[6] are read/write enables.
Accessible only when CSA or CSB = 0, MCR[2] = 1, and loop-back is disabled (MCR[4] = 0).
A1
0
0
1
1
0
0
1
1
0
0
1
0
0
1
1
1
1
1
9.
Register map - read/write properties
A0
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
1
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs
Rev. 03 — 14 December 2004
Read mode
receive holding register (RHR)
interrupt enable register (IER)
interrupt identification register (IIR)
line control register (LCR)
modem control register (MCR)
line status register (LSR)
modem status register (MSR)
scratchpad register (SPR)
divisor latch LSB (DLL)
divisor latch MSB (DLH)
enhanced feature register (EFR)
Xon1 word
Xon2 word
Xoff1 word
Xoff2 word
transmission control register (TCR)
trigger level register (TLR)
FIFO ready register
1.8432 MHz
C1
22 pF
X1
[2],
[2],
[2],
[2],
[4]
[4]
[4]
[4]
C2
33 pF
[2],
[6]
[2],
[2],
[3]
[2],
[3]
[5]
[1]
[2],
[2],
[4]
[5]
1.8432 MHz
C1
22 pF
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Write mode
transmit holding register (THR)
interrupt enable register
FIFO control register (FCR)
line control register
modem control register
scratchpad register
divisor latch LSB
divisor latch MSB
enhanced feature register
Xon1 word
Xon2 word
Xoff1 word
Xoff2 word
transmission control register
trigger level register
X1
SC16C752B
1.5 k
C2
47 pF
002aaa586
[2],
[2],
[2],
[2],
[4]
[4]
[4]
[4]
[2],
[2],
[3]
[2],
[3]
[5]
[1]
[2],
19 of 47
[2],
[4]
[5]