SC16C650BIBS PHILIPS [NXP Semiconductors], SC16C650BIBS Datasheet - Page 17

• Manufacturer Part Number: SC16C650BIBS
• Description: 5 V, 3.3 V and 2.5 V UART with 32-byte FIFOs and infrared (IrDA) encoder/decoder
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 14451
Product data
Fig 8. Internal loop-back mode diagram.
IOW, IOW
IOR, IOR
CS0, CS1
RESET
D0–D7
RXRDY
TXRDY
A0–A2
DDIS
CS2
INT
AS
SC16C650B
CONTROL LOGIC
INTERRUPT
REGISTER
DATA BUS
CONTROL
SELECT
In this mode, the receiver and transmitter interrupts are fully operational. The Modem
Control Interrupts are also operational. However, the interrupts can only be read
using lower four bits of the Modem Status Register (MSR[0:3]) instead of the four
Modem Status Register bits 4:7. The interrupts are still controlled by the IER.
LOGIC
LOGIC
AND
Rev. 03 — 10 December 2004
XTAL1
RCLK
GENERATOR
CLOCK AND
BAUD RATE
TRANSMIT
REGISTERS
REGISTERS
UART with 32-byte FIFOs and IrDA encoder/decoder
CONTROL
CONTROL
RECEIVE
LOGIC
LOGIC
FLOW
FLOW
FIFO
FIFO
XTAL2
BAUDOUT
TRANSMIT
REGISTER
REGISTER
RECEIVE
CONTROL
SHIFT
SHIFT
MODEM
LOGIC
ENCODER
DECODER
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
IR
IR
SC16C650B
002aaa606
OUT2
TX
RX
RTS
CTS
DTR
DSR
OUT1
RI
DCD
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