參數資料
型號: PIC16C765-I/L
廠商: Microchip Technology
文件頁數: 98/165頁
文件大?。?/td> 0K
描述: IC MCU OTP 8KX14 USB 44PLCC
產品培訓模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標準包裝: 27
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 24MHz
連通性: SCI,UART/USART,USB
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數: 33
程序存儲器容量: 14KB(8K x 14)
程序存儲器類型: OTP
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4.35 V ~ 5.25 V
數據轉換器: A/D 8x8b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
產品目錄頁面: 636 (CN2011-ZH PDF)
配用: AC164309-ND - MODULE SKT FOR PM3 44PLCC
ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING
444-1001-ND - DEMO BOARD FOR PICMICRO MCU
PIC16C745/765
DS41124C-page 38
Preliminary
2000 Microchip Technology Inc.
5.5
PORTE and TRISE Registers
PORTE has three pins, RE0/RD/AN5, RE1/WR/AN6
and RE2/CS/AN7, which are individually configured as
inputs or outputs. These pins have Schmitt Trigger
input buffers.
I/O PORTE becomes control inputs for the micropro-
cessor port when bit PSPMODE (TRISE<4>) is set. In
this mode, the user must make sure that the
TRISE<2:0> bits are set (pins are configured as digital
inputs) and that register ADCON1 is configured for dig-
ital I/O. In this mode, the input buffers are TTL.
Register 5-1 shows the TRISE register, which also con-
trols the parallel slave port operation.
PORTE pins may be multiplexed with analog inputs
(PIC16C765 only). The operation of these pins is
selected by control bits in the ADCON1 register. When
selected as an analog input, these pins will read as ’0’s.
TRISE controls the direction of the RE pins, even when
they are being used as analog inputs. The user must
make sure to keep the pins configured as inputs when
using them as analog inputs.
TRISE bits are used to control the parallel slave port.
FIGURE 5-7:
PORTE BLOCK DIAGRAM
TABLE 5-9:
PORTE(1) FUNCTIONS
Note 1: The
PIC16C745
does
not
provide
PORTE. The PORTE and TRISE registers
are reserved. Always maintain these bits
clear.
Note:
On a Power-on Reset, these pins are con-
figured as analog inputs.
Data
Bus
WR
Port
WR
TRIS
RD Port
Data Latch
TRIS Latch
RD TRIS
Schmitt
Trigger
Input
Buffer
Q
D
CK
Q
D
CK
EN
QD
EN
I/O pin
To A/D Converter
VDD
Name
Function
Input
Type
Output
Type
Description
RE0/RD/AN5
RE0
ST
CMOS
Bi-directional I/O(1)
RD
TTL
Parallel Slave Port Control Input(1)
AN5
AN
A/D Input(1)
RE1/WR/AN6
RE1
ST
CMOS
Bi-directional I/O(1)
WR
TTL
Parallel Slave Port Control Input(1)
AN6
AN
A/D Input(1)
RE2/CS/AN7
RE2
ST
CMOS
Bi-directional I/O(1)
CS
TTL
Parallel Slave Port Data Input(1)
AN7
AN
A/D Input(1)
Legend:
OD = open drain, ST = Schmitt Trigger
Note 1:
PIC16C765 only.
745cov.book Page 38 Wednesday, August 2, 2000 8:24 AM
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