參數(shù)資料
型號: HMS30C7202
廠商: HYNIX SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-bit ARM7TDMI RISC static CMOS CPU core
中文描述: 32-BIT, 82.944 MHz, RISC PROCESSOR, PBGA256
封裝: 17 X 17 MM, 1.40 MM HEIGHT, 1 MM PITCH, FBGA-256
文件頁數(shù): 99/161頁
文件大小: 973K
代理商: HMS30C7202
HMS30C7110
2003 MagnaChip Semiconductor Ltd. All Rights Reserved
Version 1.5
99
Table 2.57 IER Bit Definition
Address :
1800_0004
Bits
Access Default Description
31:4
0x00
Reserved
3
RW
0x0
MODEM Status Interrupt Enable
When set to logic 1 this bit enables the MODEM Status Interrupt
2
RW
0x0
Receiver Line Status Interrupt Enable
When set to logic 1 this bit enables the Receiver Line Status
Interrupt.
1
RW
0x0
Transmitter Holing Register Empty Interrupt Enable
When set to logic 1 this bit enables the Transmitter Holding Register
Empty Interrupt.
0
RW
0x0
Receive Data Available Interrupt Enable
When set to logic 1 this bit enables the Receive Data Available
Interrupt and Timeout Interrupt in the FIFO Mode.
2.7.2.4.
In order to provide minimum software overhead during data character transfers, each serial channel
Interrupt Identification Register (IIR)
of the UART prioritizes interrupts into four levels and records these in the Interrupt Identification
Register. The four levels of interrupt conditions in order of priority are Receiver Line Status;
Received Data Ready; Transmitter Holding Register Empty; and MODEM Status.
Table 2.58 IIR Bit Definition
Address :
1800_0008
Bits
Access Default Description
31:4
0x00
Reserved
3
RO
0x0
This bit is set along with bit 2 when a timeout interrupt is pending.
2:1
RO
0x00
These two bits of the IIR identify the highest priority interrupt
pending from those shown in Table 2.64.
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