參數(shù)資料
型號: ZPSD813F1V
英文描述: Flash In System Programmable Mirocomputer Peripherals(閃速,在系統(tǒng)可編程微控制器外圍器件,1M位閃速存儲器,256K位EEPROM,16K位SRAM)
中文描述: Flash在系統(tǒng)可編程Mirocomputer外設(shè)(閃速,在系統(tǒng)可編程微控制器外圍器件,100萬位閃速存儲器,256K位的EEPROM,16K的位的SRAM)
文件頁數(shù): 45/130頁
文件大?。?/td> 650K
代理商: ZPSD813F1V
Prelimnary
PSD813F Famly
41
The
PSD813F
Functional
Blocks
(cont.)
9.2.2.1 Output Micro
Cell
Eight of the Output Micro
Cells are connected to Ports A and B pins and are named as
McellAB0-7. The other eight Micro
Cells are connected to Ports B and C pins and are
named as McellBC0-7. If an McellAB output is not assigned to a specific pin in PSDabel,
the Micro
Cell Allocator will assign it to either Port A or B. The same is true for a McellBC
output on Port B or C. Table 16 shows the Micro
Cells and Port assignment.
Maximum
Borrowed
Product
Terms
Native
Product
Terms
Data Bit for
Loading or
Reading
Output
Micro
Cell
Port
Assignment
McellAB0
McellAB1
McellAB2
McellAB3
McellAB4
McellAB5
McellAB6
McellAB7
McellBC0
McellBC1
McellBC2
McellBC3
McellBC4
McellBC5
McellBC6
McellBC7
Port A0, B0
Port A1, B1
Port A2, B2
Port A3, B3
Port A4, B4
Port A5, B5
Port A6, B6
Port A7, B7
Port B0, C0
Port B1, C1
Port B2, C2
Port B3, C3
Port B4, C4
Port B5, C5
Port B6, C6
Port B7, C7
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
5
5
5
5
6
6
6
6
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
Table 16. Output Micro
Cell Port and Data Bit Assignments
The Output Micro
Cell (OMC) architecture is shown in Figure 15. As shown in the figure,
there are native product terms available from the AND array, and borrowed product terms
available (if unused) from other OMCs. The polarity of the product term is controlled by the
XOR gate. The OMC can implement either sequential logic, using the flip-flop element, or
combinatorial logic. The multiplexer selects between the sequential or combinatorial logic
outputs. The multiplexer output can drive a Port pin and has a feedback path to the AND
array inputs.
The flip-flop in the OMC can be configured as a D, T, JK, or SR type in the PSDabel
program. The flip-flop’s clock, preset, and clear inputs may be driven from a product term
of the AND array. Alternatively, the external CLKIN signal can be used for the clock input to
the flip-flop. The flip-flop is clocked on the rising edge of the clock input. The preset and
clear are active-high inputs. Each clear input can use up to two product terms.
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