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TUSB5152 датащи(PDF) 17 Page - Texas Instruments

номер детали TUSB5152
подробное описание детали  USB to 2-Serial 1-Parallel Controller With Configurable Optional Hub
PDF  84 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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TUSB5152 датащи(HTML) 17 Page - Texas Instruments

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3–5
3.2
Connecting an External Microcontroller for Development
Figure 3–3 illustrates how to connect an external 8052 microcontroller to the TUSB5152. Pin TEST0* must be
connected to ground to enable the external mode (TEST[2:0] = 110b). Table 3–4 outlines the signals used to connect
the TUSB5152 to the external microcontroller.
Table 3–4. Signals Used for External Microcontroller
TUSB5152
EXTERNAL 8052 MICROCONTROLLER
TUSB5152
NAME
NAME
COMMENTS
P1.0
P0.0
Port-0: Bit-0 data bus
P1.1
P0.1
Port-0: Bit-1 data bus
P1.2
P0.2
Port-0: Bit-2 data bus
P1.3
P0.3
Port-0: Bit-3 data bus
P1.4
P0.4
Port-0: Bit-4 data bus
P1.5
P0.5
Port-0: Bit-5 data bus
P1.6
P0.6
Port-0: Bit-6 data bus
P1.7
P0.7
Port-0: Bit-7 data bus
P3.0
P2.0
Address line A8
P3.1
P2.1
Address line A9
P3.3
P2.2
Address line A10
P3.4
P2.7
Address line A15
LED-1
ALE
Address latch enable
LED-2
INTO
Interrupt input to microcontroller
LED-3
WR
External data memory write strobe
LED-4
RD
External data memory read strobe
RSTO
RST
Master reset input
TSUB5152
8052
LED-1
LED-3
LED-4
LED-2
RSTO
TEST0
P1 (0–7)
P3 (0,1,3,4)
Address (8–10), A15
ALE
WR
P0 (0–7)
RD
P2 (0–2)
INT0
RST
P1 (0–7)
P3 (0–7)
Figure 3–3. Dual LED Connection to LED and SUSP Signals



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