参数资料
型号: SAB-C515-L24N
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 24 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 107/162页
文件大小: 771K
代理商: SAB-C515-L24N
Semiconductor Group
6-6
On-Chip Peripheral Components
C515
6.1.2.2
Port 1, Port 3 to Port 5 Circuitry
The pins of ports 1, 3, 4, and 5 are multifunctional. They are port pins and also serve to implement
special features as listed in table 6-1.
Figure 6-4 shows a functional diagram of a port latch with alternate function. To pass the alternate
function to the output pin and vice versa, however, the gate between the latch and driver circuit must
be open. Thus, to use the alternate input or output functions, the corresponding bit latch in the port
SFR has to contain a one (1); otherwise the pulldown FET is on and the port pin is stuck at 0. After
reset all port latches contain ones (1).
Figure 6-4
Ports 1, 3, 4 and 5
MCS01827
D
CLK
Bit
Latch
Q
Internal
Pull Up
Arrangement
Pin
Read
Latch
to
Latch
Read
Pin
Write
V
CC
Int. Bus
Alternate
Output
Function
Alternate
Input
Function
&
相关PDF资料
PDF描述
SAF-C515-RM 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP80
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