TSS463-AA ATMEL Corporation, TSS463-AA Datasheet - Page 4

• Manufacturer Part Number: TSS463-AA
• Description: Van (ISO Standard 11519-3) Datalink Controller With Serial Interface.
• Manufacturer: ATMEL Corporation

Application
Figure 1. Typical Application With Motorola SPI Mode
4
TSS463-AA
mC
Remaining pins
PORT X.Y
RESET
CKOUT
The TSS463AA is a microprocessor controlled line controller for the VAN bus. It can
interface to virtually any microprocessor which includes SPI or SCI interface.
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In addition, the circuit features a single interrupt pin. This pin can be treated as level
sensitive. For example, if there is a pending interrupt inside the circuit when another
interrupt is reset, the INT pin will emit a high pulse with the same pulse width as the
internal write strobe (typically 20 ns).
Notes:
MISO
SCLK
MOSI
IRQ
The TSS463AA provides one full Motorola compatible SPI interface.
It includes one full compatible Intel UART (mode 0 only).
And finally, one 9-bits SCI interface is also integrated.
(1)
1. The TSS463AA RESET pin can either be connected to GND through a 1 µF capaci-
2. Leaving MISO output pin floating in high impedance mode slightly increases standby
tor, or the µC RESET pin or unconnected (inactive with internal pull-up).
consumption. A 100 KΩ pull-up/pull-down resistor is recommended.
(if needed)
100K
TEST/VSS
XTAL1
XTAL2
CKOUT
MISO
INT
VDD
SS
General I/O
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RESET
GND
TxD
RxD0
RxD2
RxD1
MOSI
SCLK
(1)
VAN Bus
4205A–AUTO–03/03