NAD VISO TWO - Page 14

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16-KB RAM

256-KB FLASH
E
2
PROM
CPU (TLCS-900/L1)
PC
10-Bit 8CH
AD
Converter
H-OSC
SIO/UART/IrDA
(SIO0)
8-Bit Timer
(TMRA0)
Port 0
32 bits
FSR
XWA
XBC
XDE
XHL
XIX
XIY
XIZ
XSP
W A
IX
IY
IZ
SP
TXD0 (P90)
RXD0 (P91)
TXD1 (P93)
RXD1 (P94)
TA0IN (P70)
DVCC [3]
DVSS [3]
X1
X2
(P00 to P07)
AD0 to AD7
(P10 to P17)
AD8/A8 to AD15/A15
(P20 to P27)
A0/A16 to A7/A23
AN0 to AN7
(P50 to P57)
AVCC, AVSS
VREFH, VREFL
XT1 (P96)
XT2 (P97)
RESET
AM0
AM1
ALE
Watchdog
Timer (WDT)
Clock Gear
Clock doubler
SIO/UART
(SIO1)
Serial Bus
Interface
(SBI)
SCK (P60)
SO/SDA (P61)
SI / SCL (P62)
RD (P30)
WR (P31)
HWR (P32)
BUSRQ (P34)
BUSAK (P35)
WR/ (P36)
BOOT (P37)
L-OSC
EMU0
EMU1

Port 3
SCOUT(P64), P65, P66
PA4 to PA7
CS/WAIT
Controller
(4-BLOCK)
Port 1
Port 2
Port 6
Port A
Special timer
for CLOCK
WAIT (P33)
CS0 to CS3
Interrupt
Controller
INT0 (P64)
INT1 to INT4
(PA0 to PA3)
16-Bit Timer
(TMRB0)
TB0IN0/INT5 (P80)
TB0IN1/INT6 (P81)
TB0OUT0 (P82)
TB0OUT1 (P83)
16-Bit Timer
(TMRB1)
TB1IN0/INT7 (P84)
TB1IN1/INT8 (P85)
TB1OUT0 (P86)
TB1OUT1 (P87)
8-Bit Timer
(TMRA1)
TA1OUT (P71)
8-Bit Timer
(TMRA2)
8-Bit Timer
(TMRA3)
TA3OUT (P72)
8-Bit Timer
(TMRA4)
TA4IN (P73)
8-Bit Timer
(TMRA5)
TA5OUT (P74)
8-Bit Timer
(TMRA6)
8-Bit Timer
(TMRA7)
TA7OUT (P75)
( ): Initial function after reset
B C
D E
H L
ADTRG (P53)
SCLK0/
0CTS (P92)
SCLK1/
CTS1 (P95)
(P40 to P43)
NMI
4-KB BOOT ROM
2-3