參數(shù)資料
型號(hào)： PSD813F2-15JT
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
封裝： PLASTIC, LCC-52
文件頁(yè)數(shù)： 31/103頁(yè)
文件大小： 1180K
代理商： PSD813F2-15JT
33/103
PSD8XXF2/3/4/5
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 11, the CPLD has the following
blocks:
s
24 Input Macrocells (IMC)
s
16 Output Macrocells (OMC)
s
Macrocell Allocator
s
Product Term Allocator
s
AND Array capable of generating up to 137
product terms
s
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 PSD8XXFX 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 13. Macrocell and I/O Port
I/O PORTS
CPLD MACROCELLS
INPUT MACROCELLS
LATCHED
ADDRESS OUT
MUX
D
Q
G
D
QD
WR
PDR
DATA
PRODUCT TERM
ALLOCATOR
DIR
REG.
SELECT
INPUT
PRODUCT TERMS
FROM OTHER
MACROCELLS
POLARITY
SELECT
UP TO 10
PRODUCT TERMS
CLOCK
SELECT
PR
DI LD
D/T
CK
CL
Q
D/T/JK FF
SELECT
PT CLEAR
PT
CLOCK
GLOBAL
CLOCK
PT OUTPUT ENABLE (OE)
MACROCELL FEEDBACK
I/O PORT INPUT
ALE/AS
PT INPUT LATCH GATE/CLOCK
MCU LOAD
PT PRESET
MCU DATA IN
COMB.
/REG
SELECT
MACROCELL
TO
I/O PORT
ALLOC.
CPLD
OUTPUT
TO OTHER I/O PORTS
PLD
INPUT
BUS
PLD
INPUT
BUS
MCU ADDRESS / DATA BUS
MACROCELL
OUT TO
MCU
DATA
LOAD
CONTROL
AND
ARRAY
CPLD OUTPUT
I/O PIN
AI02874
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD813F2-15M 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-15MI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-15MIT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-15MT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-15U 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64
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