參數(shù)資料
型號: 935265527551
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64
封裝: PLASTIC, QFP-64
文件頁數(shù): 16/55頁
文件大?。?/td> 387K
代理商: 935265527551
1999 May 10
23
Philips Semiconductors
Preliminary specication
Universal Serial Bus (USB) CODEC
UDA1325
PORT DEFINITION 80C51
Port 1
Table 13 Port 1 of the 80C51 microcontroller
Port 3
Table 14 Port 3 of the 80C51 microcontroller
8 BIT PORT 1
BIT
FUNCTION
LOW
HIGH
COMMENT
1.0
ADAC_error
no error
error
1.1
GP1
general purpose pins
1.2
GP2
1.3
GP3
1.4
GP4
1.5
GP5
1.6
SCL
I2C-bus
1.7
SDA
8 BIT PORT 3
BIT
FUNCTION
LOW
HIGH
COMMENT
3.0
ASR_error
no error
error
3.1
PSIE_MMU_SUSPEND
no suspend
suspend
suspend input from USB interface
during normal operation or input from
restart circuit
3.2
GP0 (INT0_N)
general purpose pin
3.3
PSIE_MMU_INT (INT1_N)
interrupt input from USB interface
during normal operation or input from
restart circuit
3.4
PSIE_MMU_READY
3.5
L3_MODE
3.6
L3_CLK
3.7
L3_DATA
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