xr16v698 Exar Corporation, xr16v698 Datasheet - Page 22

• Manufacturer Part Number: xr16v698
• Description: 2.25v To 3.6v High Performance Octal Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16V698
2.25V TO 3.6V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
The XR16V698 octal UART register set consists of the Device Configuration Registers that are accessible
directly from the data bus for programming general operating conditions of the UARTs and monitoring the
status of various functions. These functions include all 8 channel UART’s interrupt control and status, 16-bit
general purpose timer control and status, sleep mode, soft-reset, and device identification and revision. Also,
each UART channel has its own set of internal UART Configuration Registers for its own operation control,
status reporting and data transfer. These registers are mapped into a 256-byte of the data memory address
space. The following paragraphs describe all the registers in detail.
3.0
F
IGURE
XR16V698 REGISTERS
12. T
8-bit Data
Interface
Bus
HE
XR16V698 R
EGISTERS
INT0, INT1, INT2,
SLEEP, RESET
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
INT3, TIMER,
Channel 0
Channel 1
22
0x00-0F
0x10-1F
0x20-2F
0x30-3F
0x40-4F
0x50-5F
0x60-6F
0x70-7F
0x80-8F
16550 Compatible and EXAR
UART[7:0] Configuration
Device Configuration Registers
Sleep, Reset, DVID, DREV
Enhanced Registers
16-bit Timer/Counter,
8 channel Interrupts,
Registers
698REGS-1
REV. 1.0.2