TS80C188EB25 Intel, TS80C188EB25 Datasheet - Page 13

• Manufacturer Part Number: TS80C188EB25
• Description: 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
• Manufacturer: Intel

NOTE
Pin names in parentheses apply to the 80C188EB 80L188EB
T0OUT
T1OUT
T0IN
T1IN
INT0
INT1
INT4
INT2 INTA0
INT3 INTA1
P2 7
P2 6
CTSO
P2 4 CTS1
TXD0
P2 1 TXD1
RXD0
P2 0 RXD1
P2 5 BCLK0
P2 2 BCLK1
P2 3 SINT1
Name
Pin
Type
Pin
I O
I O
I O
O
O
O
I
I
I
I
A(L) A(E)
A(E L)
A(E L)
Input
Type
A(E)
A(L)
A(L)
A(L)
A(L)
Table 3 Pin Descriptions (Continued)
H(X) H(Q)
H(X) H(Q)
P(X) P(Q)
P(X) P(X)
Output
States
H(Q)
H(Q)
P(Q)
R(Z)
H(X)
R(Z)
R(Z)
R(1)
H(1)
P(1)
P(X)
R(1)
P(X)
R(0)
Timer OUTput pins can be programmed to provide a
single clock or continuous waveform generation
depending on the timer mode selected
Timer INput is used either as clock or control signals
depending on the timer mode selected
Maskable INTerrupt input will cause a vector to a
specific Type interrupt routine To allow interrupt
expansion INT0 and or INT1 can be used with
INTA0 and INTA1 to interface with an external slave
controller
These pins provide a multiplexed function As inputs
they provide a maskable INTerrupt that will cause
the CPU to vector to a specific Type interrupt routine
As outputs each is programmatically controlled to
provide an INTERRUPT ACKNOWLEDGE
handshake signal to allow interrupt expansion
BI-DIRECTIONAL open-drain Port pins
Clear-To-Send input is used to prevent the
transmission of serial data on their respective TXD
signal pin CTS1 is multiplexed with an input only port
function
Transmit Data output provides serial data
information TXD1 is multiplexed with an output only
Port function During synchronous serial
communications TXD will function as a clock output
Receive Data input accepts serial data information
RXD1 is multiplexed with an input only Port function
During synchronous serial communications RXD is
bi-directional and will become an output for
transmission or data (TXD becomes the clock)
Baud CLocK input can be used as an alternate clock
source for each of the integrated serial channels
BCLKx is multiplexed with an input only Port function
and cannot exceed a clock rate greater than one-half
the operating frequency of the processor
Serial INTerrupt output will go active to indicate
serial channel 1 requires service SINT1 is
multiplexed with an output only Port function
80C186EB 80C188EB 80L186EB 80L188EB
Description
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