SC16IS740IPW PHILIPS [NXP Semiconductors], SC16IS740IPW Datasheet - Page 14

• Manufacturer Part Number: SC16IS740IPW
• Description: Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
SC16IS740_750_760_5
Product data sheet
7.4 Hardware reset, Power-On Reset (POR) and software reset
These three reset methods are identical and will reset the internal registers as indicated in
Table
Table 4
Table 4.
[1]
[2]
[3]
Table 5
Table 5.
Register
Interrupt Enable Register
Interrupt Identification Register
FIFO Control Register
Line Control Register
Modem Control Register
Line Status Register
Modem Status Register
Enhanced Feature Register
Receiver Holding Register
Transmitter Holding Register
Transmission Control Register
Trigger Level Register
Transmit FIFO level
Receive FIFO level
I/O direction
I/O interrupt enable
I/O control
Extra Feature Register
Signal
TX
RTS
I/Os
IRQ
Registers DLL, DLH, SPR, XON1, XON2, XOFF1, XOFF2 are not reset by the top-level reset signal
RESET, POR or Software Reset, that is, they hold their initialization values during reset.
This register is not supported in SC16IS740.
Only UART Software Reset bit is supported in this register.
4.
summarizes the state of register.
summarizes the state of registers after reset.
[3]
Register reset
Output signals after reset
[2]
Reset state
HIGH
HIGH
inputs
HIGH by external pull-up
[2]
Rev. 05 — 16 November 2006
Single UART with I
[1]
Reset state
all bits cleared
bit 0 is set; all other bits cleared
all bits cleared
reset to 0001 1101 (0x1D)
all bits cleared
bit 5 and bit 6 set; all other bits cleared
bits 0:3 cleared; bits 4:7 input signals
all bits cleared
pointer logic cleared
pointer logic cleared
all bits cleared.
all bits cleared.
reset to 0100 0000 (0x40)
all bits cleared
all bits cleared
all bits cleared
all bits cleared
all bits cleared
2
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
SC16IS740/750/760
© NXP B.V. 2006. All rights reserved.
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