参数资料
型号: SCD223110QCD
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 2 CHANNEL(S), 256K bps, SERIAL COMM CONTROLLER, PQFP100
封装: METRIC, QFP-100
文件页数: 7/178页
文件大小: 2247K
代理商: SCD223110QCD
CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
104
Datasheet
8.2.10
Special Character Range — Async Mode Only
8.2.10.1
Special Character Range low (SCRl)
8.2.10.2
Special Character Range high (SCRh)
These registers define an inclusive range for special character recognition in the Asynchronous
mode. It can be useful for identifying that a received character is within a user-defined range and is,
for example, a control character.
8.2.11
LNext Character (LNXT) — Async Mode Only
This register defines the LNext character. If the LNext function is enabled (COR7[6]), the CD2231
examines received characters and compare them against this value. If a match occurs, this character
and the following are placed in the FIFO without any special processing. In effect, the LNext
function causes the CD2231 to ignore characters with special meaning, such as flow control
characters. There are two exceptions: a ‘break’ or an ‘errored’ character. If the character following
the LNext character is either a ‘break’ or an ‘errored’ character, LNext is placed in the FIFO, and
the following character is treated as it normally would be for these error conditions.
Register Name: SCRL
Register Description: Special Character Range, low
Default Value: x’00
Access: Byte Read/Write
Intel Hex Address: x’20
Motorola Hex Address: x’23
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
User-defined special character detect range, low
Register Name: SCRH
Register Description: Special Character Range, high
Default Value: x’00
Access: Byte Read/Write
Intel Hex Address: x’21
Motorola Hex Address: x’22
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
User-defined special character detect range, high
Register Name: LNXT
Register Description: Literal Next Character
Default Value: x’00
Access: Byte Read/Write
Intel Hex Address: x’2D
Motorola Hex Address: x’2E
Bit 7Bit 6Bit 5
Bit 4
Bit 3Bit 2Bit 1Bit 0
User-defined literal next character
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