参数资料
型号: ZPSD412A0-C-90UI
元件分类: 微控制器/微处理器
英文描述: 64K X 8 OTPROM, 40 I/O, PIA-GENERAL PURPOSE, PQFP80
封装: PLASTIC, TQFP-80
文件页数: 65/128页
文件大小: 433K
代理商: ZPSD412A0-C-90UI
Multiplexed
Data Bus
Bus Control
Microcontroller
Width
Signals
Mux
8
WR, RD, PSEN, A0
8031/80C51
Mux/
Non-mux
8/16
R/W, E, BHE, A0
68HC11
Mux
8/16
WR, RD, BHE, A0
80C196/80C186
Mux
16
WRL, RD, WRH, A0
80C196SP
Non-mux
16
R/W, LDS, UDS
68302
Non-mux
8/16
R/W, DS, SIZ0, A0
68340
Non-mux
16
R/W, DS, BHE, BLE
68330, 68331
Non-mux
8
RD, WR
68HC05C
Non-mux
16
R/W, E, LSTRB, A0
68HC12
Non-mux
16
R/W, DS
68HC16
PSD4XX Family
37
Table 5. Typical Microcontroller Bus Types
9.2 Bus Interface
The Bus Interface is very flexible and can be configured to interface to most
microcontrollers with no glue logic. Table 5 lists some of the bus types to which the Bus
Interface is able to interface.
9.2.1 Bus Interface Configuration
The Bus Interface Logic is user configurable. The type of bus interface is specified by
the user in the PSDsoft software (PSD configuration). The bus control input pins have
multi-function capabilities. By choosing the right configuration, the PSD4XX is able to
interface to most microcontrollers, including the ones listed in Table 5. In Table 6, the
names of the bus control input signal pins and their multiple functions are shown. For
example, Pin PE0 can be configured by the PSD configuration software to perform any one
of the five functions. Examples on the interface between the PSD4XX and some typical
microcontrollers are shown in following sections.
The PSD4XX
Architecture
(cont.)
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