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參數(shù)資料
型號(hào)： PSD913420JT
廠商： 意法半導(dǎo)體
英文描述： Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述： Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器
文件頁(yè)數(shù)： 36/110頁(yè)
文件大小： 1737K
代理商： PSD913420JT
PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
36/110
Complex PLD (CPLD)
The CPLD can be used to implement system logic
functions, such as loadable counters and shift reg-
isters, system mailboxes, handshaking protocols,
state machines, and random logic. The CPLD can
also be used to generate three External Chip Se-
lect (ECS0-ECS2), routed to Port D.
Although External Chip Select (ECS0-ECS2) can
be produced by any Output Macrocell (OMC),
these three External Chip Select (ECS0-ECS2) on
Port D do not consume any Output Macrocells
(OMC).
As shown in
Figure 13., page 34
, the CPLD has
the following blocks:
24 Input Macrocells (IMC)
16 Output Macrocells (OMC)
Macrocell Allocator
■
■
■
■
Product Term Allocator
AND Array capable of generating up to 137
product terms
Four I/O Ports.
Each of the blocks are described in the sections
that follow.
The Input Macrocells (IMC) and Output Macrocells
(OMC) are connected to the PSD internal data bus
and can be directly accessed by the MCU. This
enables the MCU software to load data into the
Output Macrocells (OMC) or read data from both
the Input and Output Macrocells (IMC and OMC).
This feature allows efficient implementation of sys-
tem logic and eliminates the need to connect the
data bus to the AND Array as required in most
standard PLD macrocell architectures.
■
■
Figure 15. Macrocell and I/O Port
I/O PORTS
CPLD MACROCELLS
INPUT MACROCELLS
LATCHED
ADDRESS OUT
MUX
M
M
M
M
D
D
Q
Q
Q
G
D
Q D
WR
WR
PDR
DATA
PALLOCATOR
DIR
SELECT
INPUT
PFROM OTHER
MACROCELLS
POLARITY
PROUP TO 10
CLOCK
PR
DI LD
D/T
CK
CL
Q
SELECT
PT CLEAR
PT
GLOBAL
PT OUTPUT ENABLE (OE)
MACROCELL FEEDBACK
I/O PORT INPUT
ALE/AS
PT INPUT LATCH GATE/CLOCK
MCU LOAD
PT PRESET
MCU DATA IN
/REG
SELECT
MACTO
IALLOC.
OCPLD
TO OTHER I/O PORTS
P
P
MCU ADDRESS/DATA BUS
MOUT TO
MCU
CDATA
A
CPLD OUTPUT
I/O PIN
AI02874
相關(guān)PDF資料
PDF描述
PSD833420JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD933420JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD853420JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD953420JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD814420JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD913420MIT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD913420MT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD913470JIT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD913470JT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD913470MIT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
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