參數(shù)資料
型號(hào)： XR16L788CQTR-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 13/54頁(yè)
文件大?。?/td> 0K
描述： IC UART FIFO 64B OCTAL 100QFP
標(biāo)準(zhǔn)包裝： 500
特點(diǎn)： *
通道數(shù)： 8
FIFO's： 64 字節(jié)
規(guī)程： RS485
電源電壓： 2.97 V ~ 5.5 V
帶自動(dòng)流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
安裝類型： 表面貼裝
封裝/外殼： 100-BQFP
供應(yīng)商設(shè)備封裝： 100-QFP（14x20）
包裝： 帶卷 (TR)
XR16L788
20
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
REV. 1.2.3
3.0
XR16L788 REGISTERS
The XR16L788 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.
3.1
DEVICE CONFIGURATION REGISTER SET
The device configuration registers are directly accessible from the bus. This provides easy programming of
general operating parameters to the 788 UART and for monitoring the status of various functions. The device
configuration registers are mapped onto address 0x80-8F as shown on the register map in Table 8 and
Figure 13. These registers provide global controls and status of all 8 channel UARTs that include interrupt
status, 16-bit general purpose timer control and status, 8X or 16X sampling clock, sleep mode control, soft-
reset control, simultaneous UART initialization, and device identification and revision.
FIGURE 13. THE XR16L788 REGISTERS
TABLE 7: XR16L788 REGISTER SETS
ADDRESS [A7:A0]
UART CHANNEL SPACE
REFERENCE
COMMENT
0x00 - 0x0F
UART channel 0 Registers
First 8 registers are 16550 compatible
0x10 - 0x1F
UART channel 1 Registers
0x20 - 0x2F
UART channel 2 Registers
0x30 - 0x3F
UART channel 3 Registers
0x40 - 0x4F
UART channel 4 Registers
0x50 - 0x5F
UART channel 5 Registers
0x60 - 0x6F
UART channel 6 Registers
0x70 - 0x7F
UART channel 7 Registers
0x80 - 0x8F
Device Configuration Registers
(
Interrupt registers and global controls
INT0, INT1, INT2,
INT3, TIMER,
SLEEP, RESET
8-bit Data
Bus
Interface
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Device Configuration Registers
8 channel Interrupts,
16-bit Timer/Counter,
Sleep, Reset, DVID, DREV
UART[7:0] Configuration
Registers
16550 Compatible and EXAR
Enhanced Registers
758REGS-1
0x10-1F
0x00-0F
0x20-2F
0x30-3F
0x40-4F
0x50-5F
0x60-6F
0x70-7F
0x80-8F
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