Z86L827HZ008SC View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z86L827HZ008SC

20-Pin Low-Voltage IR Microcontrollers

Zilog 

Z86L825/826/827

20-Pin Low-Voltage IR Microcontrollers

63

Stop-Mode Recovery Register 2 (SMR2)

This register determines the mode of Stop-Mode Recovery for SMR2 (see

Figure 49).

SMR2 (0F) DH

D7 D6 D5 D4 D3 D2 D1 D0

Reserved (must be 0)

Reserved (must be 0)

Stop-Mode Recovery Source

000 = POR Only *

001 = NAND P20, P21, P22, P23

010 = NAND P20, P21, P22, P33, P24, P25, P26, P27

011 = NOR P31, P32, P33

100 = NAND P31, P32, P33, P00, P07

101 = NOR P31, P32, P33, P00, P07

110 = NAND P31, P32, P33, P00, P07

111 = NAND P31, P32, P33, P20, P21, P22

* Default setting after reset

** At the XOR gate input

Reserved (must be 0)

Recovery Level **

0 = Low *

1 = High

Reserved (must be 0)

Figure 49. Stop-Mode Recovery Register 2—(0F) DH:D2–D4, D6 Write Only

If SMR2 is used in conjunction with SMR, either of the specified events causes a

Stop-Mode Recovery.

Note: Port pins configured as outputs are ignored as a SMR or SMR2

recovery source. For example, if the NAND or P23–P20 is

selected as the recovery source and P20 is configured as an

output, the remaining SMR pins (P23–P21) form the NAND

equation.

Table 24 describes the contents of the Stop-Mode Recovery register 2.

PS008808-1203

PRELIMINARY

Share Link: