Z9035112PSC Zilog, Z9035112PSC Datasheet - Page 18

• Manufacturer Part Number: Z9035112PSC
• Description: IC 64KW DIG TV CTRL OTP 52-SDIP
• Manufacturer: Zilog

Specifications of Z9035112PSC

• Applications: TV Controller
• Core Processor: Z8
• Program Memory Type: OTP (128 kB)
• Controller Series: Digital Television Controller (DTC)
• Ram Size: 2K x 8
• Interface: I²C, 2-Wire Serial
• Number Of I /o: 25
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 52-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The 24-bit ALU has two input ports, one of which is connected to the output of the 24-bit
Accumulator. The other input is connected to the 24-bit P-Bus; the upper 16 bits are
connected to the 16-bit D-Bus.
Several instructions are executed in one machine cycle. Long immediate instructions and
Jump or Call instructions are executed in two machine cycles. When the program memory
is referenced in internal RAM indirect mode, it requires three machine cycles. An
additional machine cycle is required if the PC is selected as the destination of a data
transfer instruction. This only occurs with a register indirect branch instruction.
A six-level hardware stack is connected to the D-Bus to hold subroutine return addresses
or data. The CALL instruction pushes PC+2 onto the stack. The RET instruction returns
the contents of the stack to the PC.
The Z90356 has 11 physical internal registers and four banks of eight external registers. In
addition, it has nine virtual registers. The 11 internal registers are defined in Table 2, and
the status register is defined in Table 3.